# Function libm::acoshf [−][src]

pub fn acoshf(x: f32) -> f32

Inverse hyperbolic cosine (f32)

Calculates the inverse hyperbolic cosine of `x`

.
Is defined as `log(x + sqrt(x*x-1))`

.
`x`

must be a number greater than or equal to 1.

pub fn acoshf(x: f32) -> f32

Inverse hyperbolic cosine (f32)

Calculates the inverse hyperbolic cosine of `x`

.
Is defined as `log(x + sqrt(x*x-1))`

.
`x`

must be a number greater than or equal to 1.