pub fn copysign(x: f32, y: f32) -> f32Expand description
Returns a number composed of the magnitude of x and the sign of y.
Equal to x if the sign of x and y are the same, otherwise equal to -x. If x is a
NaN, then a NaN with the sign bit of y is returned. Note, however, that conserving the
sign bit on NaN across arithmetical operations is not generally guaranteed.