Status: Accepted
Owner: ----
Labels: Type-Enhancement Priority-Medium Simplify
New issue 2975 by [email protected]: Simplification of hypebolic identity.
http://code.google.com/p/sympy/issues/detail?id=2975
Now we have simplification of trigonometric Pythagorean identity:
In [25]: (cos(x)**2 + sin(x)**2).simplify()
Out[25]: 1
And analogous derived from it, e.g.
In [7]: simplify(1 - sin(x)**2)
Out[7]: cos(x)**2
But it seems that there are no analogical simplification for hyperbolic:
In [26]: (cosh(x)**2 - sinh(x)**2).simplify()
Out[26]: -sinh(x)**2 + cosh(x)**2
(must be 1)
The questions:
1. What is the status of it? (I didn't find the related issue, but may be
it present)
2. For the trigonometry the function 'trigsimp' is used internally
in 'symplify' (or it can be called directly). Should we add the hyperbolic
maintaining to this function, or create analog of 'trigsimp'
(e.g. 'hypersimp')?
--
You received this message because you are subscribed to the Google Groups
"sympy-issues" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sympy-issues?hl=en.
