# [−][src]Function core::intrinsics::sqrtf64

    pub unsafe extern "rust-intrinsic" fn sqrtf64(x: f64) -> f64

🔬 This is a nightly-only experimental API. (`core_intrinsics`)

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

Returns the square root of an `f64`

The stabilized version of this intrinsic is `f64::sqrt`