Hi Saurabh,
Thank you for sharing the details. I have completed reading the
documentation.
Inspired from this pull request: https://github.com/asmeurer/sympy/pull/57
, I want to start working on this issue.
Can I continue on the same?
Thank you,
Akash
On Thu, Jan 8, 2015 at 4:08 PM, Saurabh Jha
Yes, we can convert set Interval to Boolean object,using as_relational().
In [4]: Interval(0,1).as_relational(x)
Out[4]: 0 ≤ x ∧ x ≤ 1
Thanks Sergey, for clearing the doubt.
Cheers!
Amit Kumar.
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Dear Sympy community,
The following line of code gives:
>>> from sympy import *
>>> x,y=symbols('x y')
>>> f=lambdify(x,y*cos(x))
>>> f(1)
0.54030230586814*y
works fine, but interchanging x and y:
>>> f=lambdify(x,x*cos(y))
>>> f(1)
Traceback (most recent call last):
File "", line
`lambdify` is intended for numeric evaluation (but can be made to evaluate
symbolically). By default, the functions `sin`, `cos`, etc... are pulled
from `math` or `numpy`, which expect floats (and if not given a float, they
attempt to convert to float).
What's happening here, is you're passing
E.g. some modules do
from sympy import log
others do
from sympy.functions.elementary.exponential import exp
Pros of doing just direct imports
-
01) Code review can instantly see where some symbol originates from.
02) This should eliminate some circular import
