Math Software  -> Graph Function (Graph Calculus) -> Solving Equations By Graphing

Function Grapher and Visual Calculus have the ability of calculating and graphing the roots of 2D equations. The following figure shows the roots of equation y=(x-1)^2-2.

The values of roots are shown in Result Editor

    Function y=(x-1)^2-2
       Root: x=-.4137931,y=-3.535172E-08
       Root: x=2.413793,y=-2.943236E-07

Math Software -> Graph Function (Graph Calculus) -> Solving Equations By Graphing