After that, you can use theses variable as you need:
A+B Enter
Sin(A+Cos(B)) Enter
Complex variable names are also implemented:
Alpha=23.34 Enter
Beta=52.3 Enter
sin(Alpha+cos(Beta)) Enter
2D Graphics
Type Graph2D(function(x)) with the function you need:
Graph2D(sin(1/x)) Enter
Function appears in 2D Window, you can use the Mouse buttons and Roll to zoom, Drag to move the graphic on the screen. Or use keyboard UP/DOWN/LEFT/RIGHT keys.
You can add more functions any time, system supports until 10 functions.
You can clear the screen by typing CLS command on Console Windows.