# Trigonometry

Trigonometry can be performed using the sin, cos, and tan function.

sin 45

The angle units used can be changed from the Calculator Preferences menu. Trigonometry buttons are visible when in scientific mode.

Hyperbolic functions are available by adding "h" to the end of a function.

sinh 0.34

Inverse functions are entered either using the inverse symbol ⁻¹ (Ctrl I) or the "a" form of the function. The following two equations are equivalent.

sin⁻¹ 0.5

asin 0.5

To enter π with the keyboard use Ctrl P.