How does your calculator evaluate the cosine function? Here are some different methods for evaluating trig functions.

The addition formulae and trigonometric identities are used to simplify or evaluate trigonometric expressions. Trigonometric equations are solved using a double angle formulae and the wave function.

The beloved HP-35, one of the first scientific calculators able to "perform transcendental functions such as trigonometric, logarithmic and exponential functions" with an LED display just received ...

Mastering degree-radian conversions is crucial for trigonometry and calculus. Radians simplify mathematical formulas, especially in calculus where trigonometric function derivatives rely on radian ...