The expression can contain only latin characters "x", "y", digits, separating dot for real numbers ".", signs "+", "-", "*", "/", parentheses "(", ") ", the sign of exponentiation "^" (an expression of the form x^y should be taken in parentheses (x^y)), sign equals "=" and designations of standard trigonometric functions sin, cos, tg, ctg. The expression must not contain spaces.
You can zoom the graph with the mouse wheel.
For example, the graph of the equation (x^4) + (y^4) = (x^2) + y * sin(x), built in this program, will look like this.