acos()

Calculates the arc cosine of the given value.

Synopsis

acos(x)

Description

This function calculates the arc cosine, or inverse cosine, of the given value.

Parameters

x

a numeric expression.

Returns

The arc cosine of x. The result is in the closed interval \([0, pi]\).

See Also

sin(), sinh(), asin(), asinh(), cos(), cosh(), acosh(), tan(), tanh(), atan(), atan2(), atanh()