Hi, I am new to this forum and has just shifted to SMath, though previously I was using Mathcad. In SMath, I am working with a function that involves with a definite integrals. The problem is that the function does not evaluate the integral because all the parameters in the integrals are not recognized, it prompts that a variable is not defined. Please see example below what I mean to this:

z(a,b,c):=| y:=int(x^2+c,a,b,x)
| y

I hope you the above function could be understood as I don't know how to copy and paste mathematical equations into this forum.

In the above function, there is a prompt 'a - is not defined'. The good thing is that if 'a', 'b' and 'c' are assigned with values, the function runs. But what if the limits and the integrals are variables?

Thanks a lot.

John.