Good scientific calculator for EE?

[orangeincup]

Does anyone know any good non-programmable calculators? I have a sharp el-520w right now

Do any of them solve things like indefinite integrals?

 

[axmls]

Just from a quick google search: https://www.amazon.com/gp/product/B004NBZB2Y/?tag=pfamazon01-20

If this is for a class, that's all good. But really in terms of long-term computational needs, I suggest the student version of MATLAB.