Type Method


Returns the value with lesser magnitude.


static func minimumMagnitude(_ x: CGFloat, _ y: CGFloat) -> CGFloat



A floating-point value.


Another floating-point value.

Return Value

Whichever of x or y has lesser magnitude, or whichever is a number if the other is NaN.


This method returns the value with lesser magnitude of the two given values, preserving order and eliminating NaN when possible. For two values x and y, the result of minimumMagnitude(x, y) is x if x.magnitude <= y.magnitude, y if y.magnitude < x.magnitude, or whichever of x or y is a number if the other is a quiet NaN. If both x and y are NaN, or either x or y is a signaling NaN, the result is NaN.

Double.minimumMagnitude(10.0, -25.0)
// 10.0
Double.minimumMagnitude(10.0, .nan)
// 10.0
Double.minimumMagnitude(.nan, -25.0)
// -25.0
Double.minimumMagnitude(.nan, .nan)
// nan

The minimumMagnitude method implements the minNumMag operation defined by the IEEE 754 specification.