Re: [sympy] Docker Image for Sympy

(and how to use it) on their system. I think what would be nice would to be be able to run SymPy Live on one's own and a Docker image would be perfect for that. > > Sudhanshu Mishra > > On Tue, Jun 28, 2016 at 11:00 AM, Sartaj Singh <singhsarta...@gmail.com> > wrote: >> >> >

[sympy] Webcast: Doing Math with Python

Hi all, I am very excited to share that I am doing a webcast this coming week with O'Reilly titled "Doing Math with Python" (http://www.oreilly.com/pub/e/3712). For those who may not be familiar with my book, SymPy forms a core part in three chapters, so the webcast may be interesting as well.

Re: [sympy] Docker Image for Sympy

On Tue, Jun 28, 2016 at 5:21 AM, Sartaj Singh wrote: > Another resource https://github.com/jupyter/docker-demo-images. The > notebooks here are hosted on tmpnb.org. Apparently they serve the notebooks > via docker containers. We can have an introductory notebook there as

Re: [sympy] Create symbols() from a list of variables

On Tue, Apr 5, 2016 at 11:24 AM, Aaron Meurer wrote: > You can just use symbols(variables) (symbols() works with a list of strings). Or, for some reason if you want to: variables = ['x', 'y', 'z'] sympy_variables = [] for v in variables: sympy_variables[i] = Symbol(v)

Re: [sympy] Trying to plot Lissajous curve to learn sympy but "TypeError: can't convert expression to float"

On Tue, Mar 8, 2016 at 9:54 AM, Lawrence Tattrie wrote: > I am trying to learn sympy by plotting Lissajous curves. I am familiar with > python and know some math. I downloaded and installed the Anaconda package > for Windows. I have been able to get a simple curve

Re: [sympy] Does sympify has an upper limit of number of variables?

On Wed, Jul 22, 2015 at 1:22 PM, Hong Xu h...@topbug.net wrote: Hi, When I tried to run print(sympify('a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|A|B|C|D|E|F|G|H|I|J|K|L|M|N')) I got the error: Traceback (most recent call last): File test.py, line 6, in module

Re: [sympy] Expressing equation in terms of variables

On Mon, May 25, 2015 at 5:18 AM, doris...@berkeley.edu wrote: Hi all, I am new to SymPy and I am trying to rearrange equations in order to express one variable in terms of another in SymPy. For example, I have two physics equations F=ma and rho=m/v which I defined in the beginning. I want

Re: [sympy] How to equip a Symbol with an additional attribute?

On Mon, May 18, 2015 at 11:56 PM, Carsten Knoll carstenkn...@gmx.de wrote: I want to equip an Symbol with an additional attribute to store some specific information right in place. For 'normal' Python classes it is no problem to dynamically create an additional attribute for an already

Re: [sympy] Checking an expression is an inequality

On Mon, May 11, 2015 at 3:27 PM, Aaron Meurer asmeu...@gmail.com wrote: On Mon, May 11, 2015 at 12:05 AM, Amit Saha amitsaha...@gmail.com wrote: Hi all, Is this the best way to check whether an expression is an inequality ? Yes, except note that Relational can also be Eq(). Thanks

[sympy] Checking an expression is an inequality

Hi all, Is this the best way to check whether an expression is an inequality ? expr = x - 4 0 isinstance(expr, Relational) True expr = x - 4 = 0 isinstance(expr, Relational) True expr = x - 4 = 0 isinstance(expr, Relational) True Also, can I submit a change to allow Relational to be

Re: [sympy] Unifying the inequality solvers

Hi Aaron, On Mon, May 11, 2015 at 3:21 AM, Aaron Meurer asmeu...@gmail.com wrote: Why wouldn't the input just be the inequality object itself? That would be a better way, thanks. Here is what I got now: from sympy import Symbol, solve_poly_inequality, solve_rational_inequalities,

Re: [sympy] Re: gen argument in sympy.solvers.inequalities.solve_univariate_inequality

On Sun, May 10, 2015 at 7:01 PM, AMiT Kumar dtu.a...@gmail.com wrote: Hi Amit, The `gen` argument corresponds to the symbol you are solving for the univariate inequality (expr). Example: solve_univariate_inequality(x**2 = 4, x) Or(And(-oo x, x = -2), And(2 = x, x oo))

[sympy] Unifying the inequality solvers

Hi all, I was exploring the inequality solvers [1] and it seemed to me that for someone exploring inequality solving with sympy, a helper method which would just allow the user to feed in the expression and the relational operator would be useful: from sympy import Symbol, solve_poly_inequality,

[sympy] gen argument in sympy.solvers.inequalities.solve_univariate_inequality

Hi all, What does the gen argument mean in the context of solve_univariate_inequality(expr, gen, relational=True) [1] ? [1] http://docs.sympy.org/dev/modules/solvers/inequalities.html#sympy.solvers.inequalities.solve_univariate_inequality Thanks, Amit. -- http://echorand.me -- You

Re: [sympy] Should declaring an assumption restrict values substituted?

On Fri, Apr 24, 2015 at 6:01 PM, Joachim Durchholz j...@durchholz.org wrote: Am 24.04.2015 um 00:02 schrieb Jason Moore: That makes sense, but I'm not sure whether Garbage in - Garbage Out should apply or whether SymPy should throw and error. If something is invalid, the user needs to be

Re: [sympy] Should declaring an assumption restrict values substituted?

, it could be quite expensive. I think it would be useful to at least have an option to subs to check this though. Like, subs(.., strict=True) ? Aaron Meurer On Fri, Apr 24, 2015 at 3:23 AM, Joachim Durchholz j...@durchholz.org wrote: Am 23.04.2015 um 23:57 schrieb Amit Saha: My thinking is if x

[sympy] Should declaring an assumption restrict values substituted?

Hi all, Let's say I have a symbol: x = Symbol('x', positive=True) Should the below substitution be permitted: (x+1).subs({x:-5}) -4 My thinking is if x is declared to be positive, substituting negative values should result in an error. Does that make sense? Best, Amit. --

Re: [sympy] Definite getting started document for assumptions

On Mon, Mar 16, 2015 at 3:47 AM, Aaron Meurer asmeu...@gmail.com wrote: The main design difference with the new assumptions is that the assumptions are stored separate from the expressions, like Q.positive(x). I would not recommend using them unless you know what you are doing, though, because

Re: [sympy] Re: Sympy limit - result depends on the sign

On Fri, Apr 10, 2015 at 4:54 PM, Paul Royik distantjob...@gmail.com wrote: Yes. Is there any way to tell, that t1 ? I believe, no. I asked this sometime back. [1] [1] https://groups.google.com/forum/?utm_medium=emailutm_source=footer#!msg/sympy/FC4cCBdKrs0/PJ9WgPzpIhUJ On Friday, April

Re: [sympy] Re: Definite getting started document for assumptions

that is underway. But it is far from complete. This blog gives a pretty good explanation of what the new assumptions system is going to be. Thank you. Exactly what I was looking for. On Saturday, 14 March 2015 03:32:33 UTC+5:30, Amit Saha wrote: Hi, From a sympy user's perspective

[sympy] Definite getting started document for assumptions

Hi, From a sympy user's perspective, which is the getting started document for the current assumptions implementation? Couple of things I am looking for: - When I create a Symbol object, what is the default list of assumptions about it? How do I find it? - What are all the possible assumptions

Re: [sympy] New book using SymPy: Doing Math with Python

at 1:58 PM, Amit Saha amitsaha...@gmail.com wrote: Hi all, I am excited to share that the first chapter of my book [1] which uses SymPy - Algebra and Symbolic Math with SymPy is now available in Early Access. SymPy is used in three of the seven chapters in the book. Once the book

[sympy] New book using SymPy: Doing Math with Python

Hi all, I am excited to share that the first chapter of my book [1] which uses SymPy - Algebra and Symbolic Math with SymPy is now available in Early Access. SymPy is used in three of the seven chapters in the book. Once the book is complete, I will likely to able to procure a few review copies

Re: [sympy] New book using SymPy: Doing Math with Python

access to an example chapter to help you decide if you want to buy the book. I assumed that's what you meant by early access. Jason moorepants.info +01 530-601-9791 On Thu, Mar 5, 2015 at 2:16 PM, Amit Saha amitsaha...@gmail.com wrote: On Fri, Mar 6, 2015 at 8:10 AM, Jason Moore moorepa

Re: [sympy] create symbols with complex names

On Tue, Jan 20, 2015 at 7:14 PM, David Roilo davidroilo.t...@gmail.com wrote: hello everybody, I'm new to sympy and I need some help to create symbols. In particular, I need to create a Symbol which looks like ΔR In SymPy, If I input DeltaR=symbols('Delta R') DeltaR I get as an output a

Re: [sympy] Re: Unable to solve 2*x*cos(2*x) + sin(2*x)

On Thu, Jan 15, 2015 at 2:42 AM, Aaron Meurer asmeu...@gmail.com wrote: On Wed, Jan 14, 2015 at 3:28 AM, Joachim Durchholz j...@durchholz.org wrote: Am 13.01.2015 um 23:53 schrieb Aaron Meurer: Returning [] instead of raising NotImplementedError would probably not be a bad idea either

Re: [sympy] Re: Unable to solve 2*x*cos(2*x) + sin(2*x)

On Tue, Jan 20, 2015 at 7:25 AM, Joachim Durchholz j...@durchholz.org wrote: Am 19.01.2015 um 22:14 schrieb Amit Saha: I am of the same opinion too. The first impression that I get when I see NotImplementedError is that, it is not currently implemented and thus is probably a limitation

Re: [sympy] Re: Unable to solve 2*x*cos(2*x) + sin(2*x)

at 1:14:01 AM UTC+3, Amit Saha wrote: Thanks for any insights into this and whether there is a workaround. What do you expect instead and why? Not all algebraic equations have analytic solutions. Mathematica can't do this eq as well. Thanks for the quick replies all. The Traceback made me

Re: [sympy] Re: Unable to solve 2*x*cos(2*x) + sin(2*x)

On Wed, Jan 14, 2015 at 8:53 AM, Aaron Meurer asmeu...@gmail.com wrote: On Tue, Jan 13, 2015 at 4:41 PM, Amit Saha amitsaha...@gmail.com wrote: On Wed, Jan 14, 2015 at 8:27 AM, Aaron Meurer asmeu...@gmail.com wrote: I don't think there are analytic solutions. The equation is equivalent

[sympy] Unable to solve 2*x*cos(2*x) + sin(2*x)

Hi all, Just ran into this: from sympy import solve solve(2*x*cos(2*x) + sin(2*x)) Traceback (most recent call last): File pyshell#65, line 1, in module solve(2*x*cos(2*x) + sin(2*x)) File /usr/lib/python3.3/site-packages/sympy-0.7.6_git-py3.3.egg/sympy/solvers/solvers.py, line 912,

Re: [sympy] Re: limit() and assumptions

On Sat, Jan 10, 2015 at 8:42 AM, Sergey B Kirpichev skirpic...@gmail.com wrote: On Sat, Jan 10, 2015 at 08:27:25AM +1000, Amit Saha wrote: You can't (to be fair, in old assumptions, which we use in the core). But you can do something like this: In [4]: limit((1 + x)**n/n, n, S.Infinity

Re: [sympy] Re: limit() and assumptions

On Sat, Jan 10, 2015 at 1:36 AM, Sergey Kirpichev skirpic...@gmail.com wrote: On Friday, January 9, 2015 at 4:46:53 PM UTC+3, Amit Saha wrote: NotImplementedError: Result depends on the sign of sign(log(x)) What does it mean? Can a more user friendly error be given? What's unfriendly here

[sympy] limit() and assumptions

Hi all, Probably something simple that I can't figure out. Consider the following: x = Symbol('x', positive=True) n = Symbol('n', positive=True) limit(x/n, n, S.Infinity) 0 Now: limit(x**n/n, n, S.Infinity) Traceback (most recent call last): File pyshell#95, line 1, in module

Re: [sympy] Why would I want to subclass Function for defining my functions?

On Sat, Jan 3, 2015 at 1:03 PM, Aaron Meurer asmeu...@gmail.com wrote: If you always want to evaluate to a given expression, then there is no point in using a Function subclass over a Python function. In your example, f(x) is nothing more than a shortcut for x**2. fx = f(x) is semantically

[sympy] Function composition for user-defined functions

Hi all, I understand that the compose() function defined in sympy.polys.polytools can be used as follows: from sympy import compose, Symbol x = Symbol('x') compose(x+1, x+1) x + 2 Now, let's say I have a user defined function defined as follows: from sympy import Function, Symbol, solve,

[sympy] Issue #7335: FiniteSet not accepting iterables

Hi, I only am realizing that I cannot do FiniteSet[1, 2, 3, 4]) any more. I did find it very useful to create a set from the elements of a set. Anyway, it's probably way late for that. So, what is the recommended way now to create a FiniteSet from an existing list or any other iterable? Use

[sympy] Re: Issue #7335: FiniteSet not accepting iterables

On Sun, Nov 23, 2014 at 12:20 PM, Amit Saha amitsaha...@gmail.com wrote: Hi, I only am realizing that I cannot do FiniteSet[1, 2, 3, 4]) any more. I did find it very useful to create a set from the elements of a set. set = list -- You received this message because you are subscribed

[sympy] SymPy geometric objects and matplotlib animation API

Hi all, Has anyone here played around with SymPy geometric objects (i.e. used the Point, Circle and other classes) and used matplotlib animation API to create animated plots (instead of using matplotlib's patches)? If yes, I would be very keen to learn more. Thanks, Amit. --

[sympy] Run sympy tests in Docker

Just something I experimented with and it seems to be working. If someone uses Docker: https://github.com/amitsaha/docker_files/tree/master/Fedora/sympy-test So you can do: docker run -t sympy-test 0.7.6 to run the entire test suite in the 0.7.6 branch -Amit. -- You received this message

[sympy] Slow Point() object creation

Hi all, Just noticed that creating even 1000 point objects is quite slow: from sympy import Point @profile def create_points(): for i in range(1000): Point(i, i) i**2 create_points() A random profiling run using https://github.com/rkern/line_profiler is here at:

[sympy] Deprecation warnings when using is_real

Hi, As per https://github.com/sympy/sympy/issues/6212, is_real is deprecated. I just found this: s = FiniteSet(FiniteSet(1, 2, 3)) s {{1, 2, 3}} len(s) 1 s.powerset() /usr/lib/python3.3/site-packages/sympy-0.7.5_git-py3.3.egg/sympy/functions/elementary/miscellaneous.py:334:

Re: [sympy] Re: Deprecation warnings when using is_real

On Sat, Oct 18, 2014 at 12:16 AM, Chris Smith smi...@gmail.com wrote: Yes, that would be a good change to make. On Friday, October 17, 2014 9:10:28 AM UTC-5, Amit Saha wrote: Hi, As per https://github.com/sympy/sympy/issues/6212, is_real is deprecated. I just found this: s = FiniteSet

[sympy] Creating graphs from user defined functions?

Hi all, I am just starting to learn about implementing user defined functions using the Function class: from sympy import Function class fx(Function): @classmethod def eval(cls, x): if x == 0: return 0 else: return x+2 I am wondering if

Re: [sympy] Re: Behavior of Float objects with .format() method

/sympy/pull/7605 Will be keen to hear your comments. Thanks, Amit. Aaron Meurer On Thu, Jun 12, 2014 at 8:06 PM, Amit Saha amitsaha...@gmail.com wrote: On Thu, Jun 12, 2014 at 7:26 AM, Sergey Kirpichev skirpic...@gmail.com wrote: On Monday, June 9, 2014 5:35:34 AM UTC+4, Amit Saha

Re: [sympy] Re: Behavior of Float objects with .format() method

On Thu, Jun 12, 2014 at 7:26 AM, Sergey Kirpichev skirpic...@gmail.com wrote: On Monday, June 9, 2014 5:35:34 AM UTC+4, Amit Saha wrote: I came across this: from sympy import Float Float(1.25343) 1.253430 '{0:.2f}'.format(Float(1.25343)) Traceback (most recent call last

Re: [sympy] SymPy equivalent of itertools.permutations

than with itertools.permutations(). Aaron Meurer On Thu, Jun 12, 2014 at 8:06 PM, Amit Saha amitsaha...@gmail.com wrote: Hello, On Thu, Jun 12, 2014 at 3:49 AM, Christophe Bal projet...@gmail.com wrote: Hello. What do you want to do ? I want to know if there are any SymPy methods

[sympy] SymPy equivalent of itertools.permutations

Hello, I am looking for the simplest SymPy alternative to this: import itertools for p in itertools.permutations([1, 2, 4]): ... print(p) ... (1, 2, 4) (1, 4, 2) (2, 1, 4) (2, 4, 1) (4, 1, 2) (4, 2, 1) I have a feeling this may be obvious and i am asking here without spending sufficient

[sympy] Behavior of Float objects with .format() method

I came across this: from sympy import Float Float(1.25343) 1.253430 '{0:.2f}'.format(Float(1.25343)) Traceback (most recent call last): File stdin, line 1, in module ValueError: Unknown format code 'f' for object of type 'str' Is this known/expected? Shouldn't it work? This works:

[sympy] Seeking feedback: Issue #7537 - CPython's set compatible FiniteSet methods

Hello all, FiniteSet's methods such as is_subset, is_superset, intersect differ from CPython's standard set interface methods which expose the same functionality. This will break any third party code which was written and tested with the standard set interface, when attempting to use it with

[sympy] Suggesting regarding improving accuracy of Circle.random_point() ?

Hello all, Consider the program below which is an attempt to prove that the angle inscribed at the center by any two points on a circle is always twice the angle inscribed on the circumference: from sympy import Circle, Point, Segment def prove_theorem(): c = Point(0, 0) c1 =

Re: [sympy] Re: Suggesting regarding improving accuracy of Circle.random_point() ?

On Sun, May 4, 2014 at 12:00 AM, Akshay akshaynukal...@gmail.com wrote: There is a way to reduce the variance, instead of evaluating at the end i.e print((pcq/prq).evalf()) evaluate the random points in the beginning itself p = c1.random_point().evalf() q = c1.random_point().evalf() r =

Re: [sympy] Re: Steps invoived in the calculation

On Sun, Apr 27, 2014 at 3:01 AM, jiju jijutdas2...@gmail.com wrote: Thanks Amit and Aaron for the help provided. You may find this useful as well: http://docs.sympy.org/latest/guide.html#ondrej-s-approach -- http://echorand.me -- You received this message because you are subscribed to the

Re: [sympy] Steps invoived in the calculation

On Thu, Apr 24, 2014 at 5:30 AM, jiju jijutdas2...@gmail.com wrote: Hi, Is there any way to obtain all the steps involved in the mathematical calculations from sympy? I think what you mean is that you want to see what is happening behind the scenes when you use a SymPy function or method? I

[sympy] More specific parsing error?

Hello, Consider the following: expr=input('Enter a mathematical expression: ') Enter a mathematical expression: x**2 + 3x + x**3 + 2x expr = sympify(expr) Traceback (most recent call last): File pyshell#146, line 1, in module expr = sympify(expr) File

[sympy] Advise regarding using strings in SymPy

Hello all, In my early days of exploring SymPy, I found often that one *could* use strings as arguments to various SymPy's functions, instead of passing Symbol objects. A case in point is the solve() function. For example: expr = input('Enter an expression: ') Enter an expression: x + 3*y - 6

Re: [sympy] Advise regarding using strings in SymPy

On Wed, Apr 23, 2014 at 7:21 AM, Aaron Meurer asmeu...@gmail.com wrote: On Tue, Apr 22, 2014 at 3:28 PM, Amit Saha amitsaha...@gmail.com wrote: Hello all, In my early days of exploring SymPy, I found often that one *could* use strings as arguments to various SymPy's functions, instead

Re: [sympy] Advise regarding using strings in SymPy

On Wed, Apr 23, 2014 at 8:01 AM, Aaron Meurer asmeu...@gmail.com wrote: On Tue, Apr 22, 2014 at 4:58 PM, Amit Saha amitsaha...@gmail.com wrote: On Wed, Apr 23, 2014 at 7:21 AM, Aaron Meurer asmeu...@gmail.com wrote: On Tue, Apr 22, 2014 at 3:28 PM, Amit Saha amitsaha...@gmail.com wrote: Hello

Re: [sympy] plot_implicit and legend

On Sun, Apr 13, 2014 at 6:19 PM, Amit Saha amitsaha...@gmail.com wrote: On Sun, Apr 13, 2014 at 6:40 AM, Aaron Meurer asmeu...@gmail.com wrote: It would be better to submit patches as pull requests, even if you do not know how to complete them. It is much easier to comment on code in pull

Re: [sympy] Re: plot_implicit behavior

On Tue, Apr 15, 2014 at 2:43 AM, Aaron Meurer asmeu...@gmail.com wrote: I can reproduce it. It's definitely a bug. I'm guessing plot_implicit doesn't have a well-defined way of choosing which variable is x and which variable is y. That indeed is the case. I thought of a fairly straightforward

[sympy] Re: plot_implicit behavior

On Sun, Mar 30, 2014 at 7:09 PM, Amit Saha amitsaha...@gmail.com wrote: Hello, Consider the following program: Draw a line given two points it passes through from sympy import Point, Line, plot_implicit def draw_line(x1, y1, x2, y2): p1 = Point(x1, y1) p2 = Point(x2, y2

[sympy] plot_implicit behavior

Hello, Consider the following program: Draw a line given two points it passes through from sympy import Point, Line, plot_implicit def draw_line(x1, y1, x2, y2): p1 = Point(x1, y1) p2 = Point(x2, y2) l = Line(p1, p2) eqn = l.equation() print(eqn) plot_implicit(eqn)

[sympy] plot_implicit and legend

Hello, I came across this today: The problem: from sympy import plot_implicit, Point, Line p1 = Point(1, 2) plot_implicit(Line(p1, slope=1).equation(), legend=True) /usr/lib64/python3.3/site-packages/matplotlib/axes.py:4749: UserWarning: No labeled objects found. Use label='...' kwarg on

Re: [sympy] subset() : why not is_subset() ?

Thanks, I have submitted the pull request with the change: https://github.com/sympy/sympy/pull/7346 Suggestions and comments appreciated. -- You received this message because you are subscribed to the Google Groups sympy group. To unsubscribe from this group and stop receiving emails from it,

[sympy] ProductSet implementation

Hello, I was going through how ProductSet is implemented and couple of things struck me as odd. First, the string/repr representation: s = FiniteSet(1, 2) t = FiniteSet(2, 3) p = ProductSet(s, t) p {1, 2} x {2, 3} IMO, a product set is a set (at least Wikipedia tells me so). So, shouldn't

Re: [sympy] Re: ProductSet implementation

On Wed, Mar 26, 2014 at 11:59 PM, Sergey Kirpichev skirpic...@gmail.com wrote: On Wednesday, March 26, 2014 5:18:41 PM UTC+4, Amit Saha wrote: IMO, a product set is a set (at least Wikipedia tells me so). So, shouldn't it rather be the following? {(1,2), (1,3), (2,2), (2,3)} 1

[sympy] subset() : why not is_subset() ?

Is there any reason why the subset() method in sympy/core/sets.py is not is_subset() (considering that it always returns a boolean) and also consistent with some of the other is_ methods as well.? Best, Amit. -- http://echorand.me -- You received this message because you are subscribed to

Re: [sympy] Re: Behavior of is_collinear() in geometry/point.py

On Sat, Dec 14, 2013 at 6:53 AM, Aaron Meurer asmeu...@gmail.com wrote: Sounds good to me. Can you submit a pull request? Thanks, Aaron. Done finally: https://github.com/sympy/sympy/pull/7327 Best, Amit. Aaron Meurer On Mon, Nov 11, 2013 at 1:37 PM, Amit Saha amitsaha...@gmail.com wrote

[sympy] Behavior of is_collinear() in geometry/point.py

Hello, Consider the following: Python 3: from sympy import Line, Point line = Line(Point(1,0), slope = 1) Point.is_collinear(line) True Python 2: from sympy import Line line = Line(Point(1,0), slope = 1) Point.is_collinear(line) Traceback (most recent call last): File stdin, line 1,

[sympy] Re: Behavior of is_collinear() in geometry/point.py

On Mon, Nov 11, 2013 at 11:05 PM, Amit Saha amitsaha...@gmail.com wrote: On Mon, Nov 11, 2013 at 9:13 PM, Amit Saha amitsaha...@gmail.com wrote: Hello, Consider the following: Python 3: from sympy import Line, Point line = Line(Point(1,0), slope = 1) Point.is_collinear(line) True

[sympy] Accepting line_color attribute for individual expressions

Hello, From what I can see, if I want to choose different colors for my plots, I would have to do something like this: p1 = plot(x, show=False, line_color='r') p2 = plot(x**2, show=False, line_color='b') # append the plot p1 to p2 or vice-versa p2.show() I cannot do something like this:

[sympy] Re: Plotting and automatic multiple colors

On Sun, Sep 29, 2013 at 12:14 PM, Amit Saha amitsaha...@gmail.com wrote: Hi, I am trying to find a way to do something which is usually the default behavior in matplotlib. That is, when I show() multiple plots in a single figure, they are shown in different colors automatically. For example

[sympy] Plotting and automatic multiple colors

Hi, I am trying to find a way to do something which is usually the default behavior in matplotlib. That is, when I show() multiple plots in a single figure, they are shown in different colors automatically. For example: import matplotlib.pyplot as plt plt.plot([1,2,3]) [matplotlib.lines.Line2D

[sympy] Re: Plotting and automatic multiple colors

On Sun, Sep 29, 2013 at 12:14 PM, Amit Saha amitsaha...@gmail.com wrote: Hi, I am trying to find a way to do something which is usually the default behavior in matplotlib. That is, when I show() multiple plots in a single figure, they are shown in different colors automatically. For example

Re: [sympy] Any gotcha in passing a string as solve for to solve() ?

On Wed, Jul 10, 2013 at 1:24 AM, Aaron Meurer asmeu...@gmail.com wrote: Yep, strings often (but won't always!) work as input. See https://github.com/sympy/sympy/wiki/Idioms-and-Antipatterns#strings-as-input. Thanks. Yeah, I have learned that from one of my earlier posts to the forum. In this

Re: [sympy] Complex numbers and Symbols

On Sun, Jul 7, 2013 at 12:03 PM, Aaron Meurer asmeu...@gmail.com wrote: On Sat, Jul 6, 2013 at 5:45 PM, Amit Saha amitsaha...@gmail.com wrote: On Sun, Jul 7, 2013 at 4:50 AM, Aaron Meurer asmeu...@gmail.com wrote: I think you are confusing the assumptions system and the numeric classes

Re: [sympy] Any gotcha in passing a string as solve for to solve() ?

On Thu, Jul 11, 2013 at 12:26 AM, Aaron Meurer asmeu...@gmail.com wrote: On Jul 10, 2013, at 9:17 AM, Amit Saha amitsaha...@gmail.com wrote: On Wed, Jul 10, 2013 at 1:24 AM, Aaron Meurer asmeu...@gmail.com wrote: Yep, strings often (but won't always!) work as input. See https://github.com

Re: [sympy] Complex numbers and Symbols

On Thu, Jul 11, 2013 at 12:28 AM, Aaron Meurer asmeu...@gmail.com wrote: On Jul 10, 2013, at 9:21 AM, Amit Saha amitsaha...@gmail.com wrote: On Sun, Jul 7, 2013 at 12:03 PM, Aaron Meurer asmeu...@gmail.com wrote: On Sat, Jul 6, 2013 at 5:45 PM, Amit Saha amitsaha...@gmail.com wrote

[sympy] Any gotcha in passing a string as solve for to solve() ?

Hi, I almost accidentally found this to work: from sympy import solve expr='x*2 + y + 5' solve(expr,'x') [-y/2 - 5/2] Upon investigation, I found this in solvers.py in the solve() function: def _sympified_list(w): return map(sympify, w if iterable(w) else [w]) which pretty much

[sympy] Building docs for Python 3

Hi, After I run the bin/use2to3 script, I had to manually set the following variables in py3k-sympy/doc/Makefile: PYTHON=python3.3 SPHINXBUILD = PYTHONPATH=..:$(PYTHONPATH) sphinx-build-3.3 The reasons are obvious. So, perhaps we could have some 'sed' magic incorporated in bin/use2to3 ? I am

[sympy] Complex numbers and Symbols

Hello, I have been playing a bit with the number classes, and I have come across Integer, Real and Rational classes. Comparing to their native counterparts in CPython, I understand they correspond to int, float and the Fraction (from the fractions) objects respectively. Good so far, I also looked

[sympy] Saving figures with plot()

This is something which was not obvious to me (or I don't read well), so posting it in case it helps someone: from sympy import plot from sympy import Symbol x=Symbol('x') p = plot(2*x+3,show=False) Now, you have a object of the Plot class returned in p. So, you can either see the graph

Re: [sympy] Complex numbers and Symbols

On Sun, Jul 7, 2013 at 4:50 AM, Aaron Meurer asmeu...@gmail.com wrote: I think you are confusing the assumptions system and the numeric classes in SymPy. First, for the numeric classes, SymPy does not have a complex type. Rather, we just have the object I, which represents sqrt(-1). If you

Re: [sympy] Saving figures with plot()

, Amit Saha amitsaha...@gmail.com wrote: This is something which was not obvious to me (or I don't read well), so posting it in case it helps someone: from sympy import plot from sympy import Symbol x=Symbol('x') p = plot(2*x+3,show=False) Now, you have a object of the Plot class

Re: [sympy] Saving figures with plot()

to go over the documentation for sending a pull request and will try to make some small contributions. Aaron Meurer On Sat, Jul 6, 2013 at 12:31 PM, Amit Saha amitsaha...@gmail.com wrote: This is something which was not obvious to me (or I don't read well), so posting it in case it helps

[sympy] Choosing the order of arrangement of terms

Hello, Is is possible to force the order of terms in an expression to be reverse of the order as is chosen by default i.e.highest to lowest? For example: expr=3 + x**2 + x expr x**2 + x + 3 Is there a method to store or even simply display expr as: 3 + x + x**2 without resorting to any

Re: [sympy] Choosing the order of arrangement of terms

which can be used to change that order ? Also, if an expression contains an O() term, it is automatically printed backwards. Aaron Meurer On Fri, Jul 5, 2013 at 12:59 PM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Fri, Jul 5, 2013 at 11:12 AM, Amit Saha amitsaha...@gmail.com wrote

Re: [sympy] Choosing the order of arrangement of terms

On Sat, Jul 6, 2013 at 10:18 AM, Amit Saha amitsaha...@gmail.com wrote: On Sat, Jul 6, 2013 at 10:02 AM, Aaron Meurer asmeu...@gmail.com wrote: If you use isympy, use the -o rev-lex commandline flag. If you use init_printing, use init_printing(order='rev-lex'). Can confirm that works: from

Re: [sympy] Choosing the order of arrangement of terms

On Sat, Jul 6, 2013 at 10:33 AM, Aaron Meurer asmeu...@gmail.com wrote: No, the printing is separated out from the objects in SymPy. Thanks, Aaron. Aaron Meurer On Fri, Jul 5, 2013 at 7:18 PM, Amit Saha amitsaha...@gmail.com wrote: On Sat, Jul 6, 2013 at 10:02 AM, Aaron Meurer asmeu

[sympy] Pretty printing Wiki

I made some formatting changes to the pretty printing wiki: https://github.com/sympy/sympy/wiki/Pretty-Printing Anyone knows where the images are which are currently linked? Thanks, Amit. -- http://echorand.me -- You received this message because you are subscribed to the Google Groups

Re: [sympy] Pretty printing Wiki

as TBD. Hope that's fine. Aaron Meurer On Fri, Jul 5, 2013 at 7:55 PM, Amit Saha amitsaha...@gmail.com wrote: I made some formatting changes to the pretty printing wiki: https://github.com/sympy/sympy/wiki/Pretty-Printing Anyone knows where the images are which are currently linked

Re: [sympy] The is_perpendicular() method

On Wed, Jul 3, 2013 at 8:11 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Tue, Jul 2, 2013 at 3:42 PM, Amit Saha amitsaha...@gmail.com wrote: On Wed, Jul 3, 2013 at 2:29 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Tue, Jul 2, 2013 at 8:33 AM, Amit Saha amitsaha...@gmail.com

Re: [sympy] The is_perpendicular() method

On Thu, Jul 4, 2013 at 1:42 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Wed, Jul 3, 2013 at 6:42 AM, Amit Saha amitsaha...@gmail.com wrote: On Wed, Jul 3, 2013 at 8:11 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Tue, Jul 2, 2013 at 3:42 PM, Amit Saha amitsaha...@gmail.com

Re: [sympy] The is_perpendicular() method

Hi Ondřej, On Tue, Jul 2, 2013 at 1:30 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: Hi Amit, On Sat, Jun 29, 2013 at 4:32 AM, Amit Saha amitsaha...@gmail.com wrote: Hello, Currently the is_perpendicular() method is defined, like so: a1, b1, c1 = l1.coefficients

Re: [sympy] The is_perpendicular() method

On Wed, Jul 3, 2013 at 2:29 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Tue, Jul 2, 2013 at 8:33 AM, Amit Saha amitsaha...@gmail.com wrote: Hi Ondřej, On Tue, Jul 2, 2013 at 1:30 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: Hi Amit, On Sat, Jun 29, 2013 at 4:32 AM, Amit Saha

Re: [sympy] The is_perpendicular() method

On Wed, Jul 3, 2013 at 8:11 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Tue, Jul 2, 2013 at 3:42 PM, Amit Saha amitsaha...@gmail.com wrote: On Wed, Jul 3, 2013 at 2:29 AM, Ondřej Čertík ondrej.cer...@gmail.com wrote: On Tue, Jul 2, 2013 at 8:33 AM, Amit Saha amitsaha...@gmail.com

[sympy] The is_perpendicular() method

Hello, Currently the is_perpendicular() method is defined, like so: a1, b1, c1 = l1.coefficients a2, b2, c2 = l2.coefficients return bool(simplify(a1*a2 + b1*b2) == 0) Now

[sympy] Circle and it's equation:subs() and solve()

Hello, This is more of a note of my findings and also just implicitly verifying whether I am doing the right thing. Problem: I want to find whether a point lies on a circle. I was hoping that like Linear entity objects, the circle/ellipse would have a contains() method as well. But, contains()

[sympy] Plotting geometric objects

Hello, I saw a few examples of plotting geometric objects using the pyglet module here [1]. I also learned that this is not going to be developed actively going ahead. Could someone please point to me an example of plotting geometric objects using the plot() function? (Is it supported yet?)

Re: [sympy] Plotting geometric objects

June 2013 12:12, Amit Saha amitsaha...@gmail.com wrote: Hello, I saw a few examples of plotting geometric objects using the pyglet module here [1]. I also learned that this is not going to be developed actively going ahead. Could someone please point to me an example of plotting geometric

Re: [sympy] Plotting geometric objects

On Mon, Jun 24, 2013 at 8:27 PM, Amit Saha amitsaha...@gmail.com wrote: Hello Stefan, On Mon, Jun 24, 2013 at 8:21 PM, Stefan Krastanov krastanov.ste...@gmail.com wrote: It is not supported yet. If you want, you can use the old plotting module (the only difference is the import path

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