Help:

To render square root, use the sqrt symbol. Example: sqrt( b^2 - 4ac ).
To render powers, use the ^ character. E.g., to render x squared, you would enter x^2.
You absolutely must use brackets with functions. sin x will NOT work! sin(x) will work.
to render integrals, use function int( x^2, dx, 0, 1) for definite integrals, int( e^(-x^2), dx ), for indefinite integrals.
To render summations, enter something like sum( 1/i!, i=0, infinity ). The first parameter is what you sum, and the second and third are bounds.
You can use factorial character !. If you say infinity (like in integral bounds or in summation), the infinity character will be painted.
To plot graphs, enter: graph( 600, 400, -10, 10, -10, 10, x-2, x^2+3*x)
To plot number line, enter: number_line( 600, -10, 10, -1, sqrt(3), (6.5), (20-13) )
Regression Test -- many more examples

Please write to Igor Chudov, ichudov @ algebra.com, with questions or suggestions.

Graphical Expression Rendering