Status: New
Owner: pr...@goodok.ru
Labels: Type-Defect Priority-Medium Polynomial Simplify
New issue 2245 by pr...@goodok.ru: assumption while canceling the
polynomials
http://code.google.com/p/sympy/issues/detail?id=2245
Consider simplification:
a = (x**2 - 3*x + 2)/(x - 1)
Comment #3 on issue 2245 by matt...@gmail.com: assumption while canceling
the polynomials
http://code.google.com/p/sympy/issues/detail?id=2245
This cases() function is a very nice idea. As to cancel(), this this a
common design pattern to make a function do one thing at time. cancel() can
Comment #1 on issue 2245 by asmeurer: assumption while canceling the
polynomials
http://code.google.com/p/sympy/issues/detail?id=2245
But the whole point of cancel is to cancel out common polynomial factors.
Otherwise, it is useless.
Perhaps the functionality you mention could be
Comment #5 on issue 2245 by pr...@goodok.ru: assumption while canceling the
polynomials
http://code.google.com/p/sympy/issues/detail?id=2245
The example of the last, when the limit of series's terms is analyzing.
e.g. the n-th derivatives of `acos(1-x*x)` at point `x==1` yield ratios of
Comment #6 on issue 2245 by matt...@gmail.com: assumption while canceling
the polynomials
http://code.google.com/p/sympy/issues/detail?id=2245
On the other hand simpify() should go the other direction and be feature
full. This is not the case currently as simplify() == cancel() + eps. I
