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Great, powerful and flexible math app.

Features:
1) Calculator.
• Normal calculator on portrait orientation.
• Scientific calculator on landscape orientation.
• All needed functions are included, such as: sin, cos, tan, atan, ln, log, lg, exp and etc.

2) y = f(x) : Graphing equations of one variable
• Graphing up to four equations at once.
• Graphs are labeled.
• Use touch gestures to drag the graph or pinch to zoom in or out.
• Different view on different orientations

3) z = f(x,y) : Graphing equations of two variables
• Graphing up to two equations at once.
• Graphs are labeled
• Use touch gestures to drag the graph, to rotate, or pinch to zoom in or out.
• Different view on different orientations
• Different view modes such as: Textures, Wireframe, Runtime

4) Figures
• Build mostly used figures such as:
- box
- cube
- cylinder
- sphere
- pyramid
• Use gestures to rotate figure, to zoom in/out, or to drag.
• Calculates area(S) and volume(V) of the figure.

I'd like to hear your comments or suggestions. Please, mail me to dvbua@ukr.net