Jacobi elliptic function

[pinkman]

In Home view and standard number format the result has to be shown (select it and press the soft key “Show”).

Remember (or discover) that CAS and Home don’t share the same memory space, and that CAS solves calculations symbolically. Thus in CAS mode, it receives the variable names and doesn’t know how to interpret them.

To create such programs for CAS, you should create a CAS program.
But remember it will try to solve it symbolically, which is sometimes impossible with integrals.

I also suggest you use the integral sign instead of the int function which is part of the CAS.

To be synthetic: your program is designed to calculate numerical values, don’t use it with CAS.