Comment #2 on issue 3611 by [email protected]: sqrt(x) should be the same
as x ** 0.5
http://code.google.com/p/sympy/issues/detail?id=3611
FIrst of all, I apologize for being a bit rude (I should at least have
written ‘hello’!)
Ok, I understand your point. Yet, there should be a way to pass from sqrt
to ** 0.5. This is a bit a solace:
In [61]: diff (sqrt (x) * (x ** -.5), x)
Out[61]: 0
But:
In [65]: diff (sqrt (x) - (x ** .5), x)
Out[65]:
-0.5 1
- 0.5⋅x + ───────
___
2⋅╲╱ x
There seems to be different rules applied whether the expression is a
multiplication or an addition…
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