HP Prime: cant simplify answer output

[parisse]

Well, the answer for partial fraction decomposition is a sum of coeff/(x-root) (for simple real roots), this is what you would get by doing it by hand. If you want to simplify a part of an expression, then it's not easy because there is no expression editor like on the hp49 (I mean a user interface that lets you select a subexpression and apply a transformation over it).
Here you can type:

Code:


f:=partfrac(1/(10x^2+5x));
f[1](simplify(op(f)))

Explanation: f[1] returns the root operator of the expression in f, op(f) returns the list of arguments of the root operator, simplify will simplify the list of arguments, then the root operator f[1] ('+') is applied on the list. You can not run simplify(f) because it would combine all in one fraction.