Name: cos

Type: function

Syntax: the cos of <angle> 

Syntax: cos(<angle>)

Summary: <return|Returns> the cosine of an angle (in <radian|radians>).

Introduced: 1.0

OS: mac,windows,linux,ios,android

Platforms: desktop,server,web,mobile

Example:
cos(pi)

Example:
the cos of 0

Example:
put cos(the startAngle of graphic 3) into field "Cosine"

Parameters:
angle: A positive or negative number, or an expression that evaluates to a number.

Returns: The <cos> <function> <return|returns> a number between -1 and 1.

Description:
Use the <cos> <function> to find the cosine of an angle.

The <cos> <function> repeats every 2*pi <radian|radians>: cos(x) = cos(x + 2 * pi), for any value of x.

The <cos> <function> requires its input to be in <radian|radians>. To provide an angle in <degree|degrees>, use the following <custom function>:

  function cosInDegrees angleInDegrees
    return cos(angleInDegrees * pi / 180)
  end cosInDegrees

References: pi (constant), radian (glossary), custom function (glossary), return (glossary), degree (glossary), function (control_st)

Tags: math
