Supported functions: logarithm, natural logarithm, exponential, absolute, square root. sin, cos, tan, cot, sec, csc. arcsin, arccos, arctan, arccot, arcsec, arccsc. sinh, cosh, tanh, coth, sech, csch. Features: Zoom in/out, scroll. User defined options: Chart/Axis/Marks Thickness, tags length, font size, background, minimum/maximum x.