Casio Grafikrechner FX CP 400+E

Great calculator for calculus, differential equations, complex , and graphing, only complaint is you can not store images on it. Touch screen keyboard took a little getting used to. Electrical engineering student.

I have this calculator for over 3 years. This is the best CAS calculator ever made. As an electrical engineer, I highly recommend this for engineering and physics major student.

This is an excellent calculator, but do not pay more than $150 for it.

Very very very SLOW...even slower than Casio FX 7000G (manufactured between 1985 and1988). Is just slow(SNAIL SLOWER) and has no memory for any advance operations or programming. If you can wait, it does what is suppose to do ~ eventually with Casio flashing colors on the screen with that hefty price. owned (Casio FX 7000G, Casio FX 2, Hp Prime)

Easy to use, very practical and has more that I was expected.