Real
public protocol Real : Math, FloatingPointA floating-point type that supports elementary functions and a selection of special functions.
The Real protocol provides a suitable basis for writing functions that
work on any floating-point type that supports the required functions.
-
Returns the hypotenuse of a right-angle triangle with legs (catheti) of length
xandy, preventing avoidable arithmetic overflow and underflow. The return value is the square root of the sum of squares of the arguments.Declaration
Swift
static func hypot(_ x: Self, _ y: Self) -> SelfParameters
x-
The length of one leg (cathetus) of a right-angle triangle.
y-
The length of the other leg (cathetus) of a right-angle triangle.
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Returns the inverse tangent of
self / other, using the signs ofselfandotherto determine the quadrant of the computed angle.If
self == 0 && other == 0, the return value is still finite.See also
Declaration
Swift
func inverseTangent(dividingBy other: Self) -> SelfParameters
other-
The divisor by which to divide
self.
-
Returns the value of the error function of
self.See also
erf(_:)Declaration
Swift
func error() -> Self -
Returns the value of the complementary error function of
self.See also
erfc(_:)Declaration
Swift
func complementaryError() -> Self -
Returns the value of the gamma function of
self.See also
tgamma(_:)Declaration
Swift
func gamma() -> Self -
Returns the value of the logarithmic gamma function of
self.See also
lgamma(_:)Declaration
Swift
func logarithmicGamma() -> Self
-
Returns the cube root of the value, rounded to a representable value (default implementation).
Note
This method is required by the protocol
Math; it is not an extension method.See also
cbrt(_:)Declaration
Swift
public func cubeRoot() -> Self
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Returns the inverse tangent of
y / x, using the signs ofyandxto determine the quadrant of the computed angle.If
x == 0 && y == 0, the return value is still finite.See also
Declaration
Swift
public static func atan2(_ y: Self, _ x: Self) -> SelfParameters
y-
The value to divide.
x-
The divisor by which to divide
y.
-
Returns the value of the error function of
x.See also
error()Declaration
Swift
public static func erf(_ x: Self) -> Self -
Returns the value of the complementary error function of
x.See also
complementaryError()Declaration
Swift
public static func erfc(_ x: Self) -> Self -
Returns the value of the gamma function of
x.See also
gamma()Declaration
Swift
public static func tgamma(_ x: Self) -> Self -
Returns the value of the logarithmic gamma function of
x.See also
logarithmicGamma()Declaration
Swift
public static func lgamma(_ x: Self) -> Self