trigonometric

EqPlot is a graph plotting software which enables complex equation-based 2D graph plotting of different functions including algebraic, hyperbolic, trigonometric and transcendental. The software is also used to verify nonlinear regression analysis results.

CurveFitter is a statistical regression analysis software that estimates parameter values for linear, multivariate, polynomial, exponential, and nonlinear functions.

A free tape calculator that can handle complex expressions with ease. Choose between compact or full-size modes to edit the tape, re-calculate, and cut or paste. Customize your interface with font, button size, and keypad visibility options. Numeric bases include binary, octal, and hexadecimal.

DeadLine is a free software that solves equations by graphically and numerically finding the real roots, evaluating functions, and detecting extrema of the function. It does so quickly and accurately, while also providing the first two derivatives of the function.