Type Method

minimumMagnitude(_:_:)

Returns the value with lesser magnitude.

Declaration

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

Parameters

x

A floating-point value.

y

Another floating-point value.

Return Value

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

Discussion

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.

See Also

Comparing Values

Floating-Point Operators for Double

Perform arithmetic and bitwise operations or compare values.

func isEqual(to: Double) -> Bool

Returns a Boolean value indicating whether this instance is equal to the given value.

func isLess(than: Double) -> Bool

Returns a Boolean value indicating whether this instance is less than the given value.

func isLessThanOrEqualTo(Double) -> Bool

Returns a Boolean value indicating whether this instance is less than or equal to the given value.

func isTotallyOrdered(belowOrEqualTo: Double) -> Bool

Returns a Boolean value indicating whether this instance should precede or tie positions with the given value in an ascending sort.

static func minimum(Double, Double) -> Double

Returns the lesser of the two given values.

static func maximum(Double, Double) -> Double

Returns the greater of the two given values.

static func maximumMagnitude(Double, Double) -> Double

Returns the value with greater magnitude.