Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Series
New issue 3627 by srjoglek...@gmail.com: Order malfunctions with sin(x)
http://code.google.com/p/sympy/issues/detail?id=3627
Suppose I want the binomial representation of (x + sin(x)) ** 1.2, in terms
of x
Doing series((x + y) ** 1.2, x).expand().subs(x,x).subs(y,sin(x))
returns an error of 'Maximum recursion depth reached'
On the other hand,
temp = series((x + y) ** 1.2, x).expand().subs(x,x).subs(y,cos(x))
gives the correct output,
cos(x)**1.2 + 1.2*x*cos(x)**0.2 + 0.12*x**2*cos(x)**(-0.8) -
0.032*x**3*cos(x)**(-1.8) + 0.0144*x**4*cos(x)**(-2.8) -
0.00806400000000001*x**5*cos(x)**(-3.8) + O(x**6)
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