cos()

Read(1829) Label: cosine, radian, float,

Description:

Compute the cosine value.

Syntax:

cos(numberExp)

Note:

The parameter numberExp is defined in radians.

Parameter:

numberExp

The radian of the cosine to be computed

Return value:

Float type

Example:

cos(pi())

-1.0

cos(pi(2))

1.0

Related function:

sin()

tan()