Cosine

Returns the cosine of an expression. Can be typed from the keyboard or selected from the calculator keypad

menu.

Syntax

cos(Expression)

Examples

Basic trigonometric functions

Trigonometric functions are entered by typing sin(, cos(, tan(, arcsin(, arccos( or arctan(. The functions are also available via the TRIG key on the calculator keypad. Calculations use the angle unit defined in the settings unless a different unit is specified in the input.

sin, cos, tan, sin^-1, cos^-1, tan^-1