Lunar Matrix Beta - Matrix will allow you to solve up to 6 unknowns in the form of linear equations. For example, Matrix lets you solve - 3x+4y=10, 4x+7y=14. To solve this set of equations, you would first switch to a 2x2 matrix (using the Matrix Size drop-down). Next, tap on the cell A1, and enter 3,Tap on cell A2 and enter 4

Tap on cell A and 10, Tap on cell B1 and enter 4, Tap on cell B2 and enter 7, Tap on cell B and enter 14, Pressing solve will produce your results. Results will be displayed in cells next to the 10 and 14. To view the results in better accuracy, simply tap on the cell. This application is freeware. The full commercial version will soon be available with MagiCalc.