Equation Solver

The Equation Solver is a calculator designed for solving the solution of an equation f(x) = 0.
First input the function f(x) and click the button “solve” and then those roots are obtained easily. The computation of solution takes a couple of seconds.
It is kindly noted that not every solution can be founded because of the limitation of resolution. For example, the root of an equation f(x) = (x-a)^(0.5) = 0 cannot be founded for |a|<2.