Hi,
please have a look at the following code:
from sympy import *
X,Y,Z = symbols("\X,\Y,\Z")
Rxy,Rxz, Ry,Ryx,Ryz, Rz,Rzy,Rzz = symbols("\\RXY,\\RXZ, \\RY,\\RYX,\\RYZ,
\\RZ,\\RZY,\\RZZ")
Rzy1,Rzy2 = symbols("\\RZYI,\\RZYII")
dimensionless_DES_list = [X*(1-X - Ryx*Y),
Hi,
It is really hard to read/understand your formula.
can you substitute all your numbers like 0.749922055929781 by some
variables. This will make your formula more readable.
And can you also print out the command latex(your_formula) so I can read
your formula better.
At a first glance I can
Hi Björn,
Here is the complete example with the shifted *-1 from the numerator to the
denominator.
In the second part of the example your code works quite well again. But I
don't know how to shift the -1* automatically when there is a need for.
In [21]: test = -(Rzy + 1)/(Ryz*Rzy - 1)
In [22]:
Hi Björn,
Thank you for your answer. I like your work-around because it improves the
latex output of my original formulas.
But I'm afraid it doesn't work for my problem (the terms calculated by
solve). It is not just a problem of printing in the right order. If you
look at the variable test (
Hi guys,
I'm working on a larger project, solving non-linear differential equation
systems by calculating the steady states.
I want to create a very flexible script were I enter a n-dimensional
equation system (mostly n=3).
The script calculates the steady states and does a stabilty analysis
I also tried
X,Y,Z = symbols("X,Y,Z",nonnegative=True)
Well solve() finds all solutions in this case but the solutions look the
same
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Hi guys,
I want to calculate the steady states of a system of differential equations:
from sympy import *
X,Y,Z = symbols("X,Y,Z")
variables_dimless = [X,Y,Z]
Rxy,Rxz, Ry,Ryx,Ryz, Rz,Rzy,Rzz = symbols("Rxy,Rxz, Ry,Ryx,Ryz,
Rz,Rzy,Rzz",positive=True)
dimensionless_DES_
her of these should be
> necessary.
>
> Aaron Meurer
>
> On Wed, Nov 9, 2016 at 5:59 AM, Alexander Tille > wrote:
> > Hi,
> > I checked also this solution.
> >
> > Traceback (most recent call last):
> > File "./algebraic_
the import mpmath command.
But this soultion is really ugly.
Am Dienstag, 8. November 2016 19:40:56 UTC+1 schrieb Björn Dahlgren:
>
>
>
> On Tuesday, 8 November 2016 15:52:40 UTC+1, Alexander Tille wrote:
>
> Hi,
>
>
>> Traceback (most recent call last):
>> F
Hi guys,
I don't understand the relationship of sympy and mpmath.
As I followed the instructions of
http://docs.sympy.org/latest/install.html#mpmath
I installed mpmath and sympy as you can see in the following lines.
$ pip install sympy
Collecting sympy
Requirement already satisfied: mpmath>=0
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