Math Equation Solver - iPhone Math Utility.
Compatible with iPhone / iPod Touch
Solve - offers two very useful math utilities at the price of one!!

Pressing 'E' icon initiate the two variable equation solver which easily solves two variable equations in no time. For example:   
                            5x + 2y = 25
                            3x + 6y = 20

Simply type in all 6 numbers (5,2,25,3,6,20), press Calculate, and get immediately x,y values.

                            x = 4.58 , y= 1.04

Great tool to simplify math, and check your math calculation skills.

Pressing the 'Root' icon initiate the Quadratic Equation Solver. For example

                          2(X*X) + 6X + 3 = 0

Simply type in all 3 numbers (2,6,3), press Calculate, and get immediately X1,X2 values.

                        X1 = -0.63, X2 = -2.37

NOTE - Wrong values will be reported as
nan
              
(not a number)       

Available at Apple AppStore, under utilities section. Press on any image to access AppStore.