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Equation solver

In this post we have a machine that I called it equation solver. As the name refers it can solve four kinds of the most popular equations. Equation degree 2, degree 3, and the equations with 2 or 3 unknown. It supports float numbers and have a perfect speed for solving your equation. As always I used ATmega16 and 16*2 LCD with three additional buttons on the board. It also supports negative numbers.


here in the link for program in Codevision:
https://drive.google.com/open?id=0B5WLZo9Cie21Y1VPdVN1bWN5ZnM
here is the link for schematic in Proteus:
https://drive.google.com/open?id=0B5WLZo9Cie21WjJJUlRjTGx1ZkU

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