math
The Math package provides mathematical constants and functions.
You can import everything provided by the Math package with:
import * from math
Constants
e
e: Float
The mathematical constant e.
print ("\{e}") // Prints 2.718281828459
max_integer
max_integer: Int
The max_integer constant is the maximum signed Int value stored on 64 bits.
print ("\{max_integer}") // Prints 9223372036854775807
min_integer
min_integer: Int
The min_integer constant is the minimum signed Int value stored on 64 bits.
print ("\{min_integer}") // Prints -9223372036854775808
pi
pi: Float
The pi mathematical constant.
print ("\{pi}") // Prints 3.1415926535898
Functions
abs
abs(_ value: Int) -> (Int)
Returns the absolute value of an integer value.
var a = abs(-12) // a equals 12
absf
absf(_ value: Float) -> (Float)
Returns the absolute value of a floating-point value.
var f = absf(-34.5) // f equals 34.5
acos
acos(_ value: Float) -> (Float)
Returns the arccosine of a floating-point value in radians.
var arccosine = acos(1.0) // arccosine equals 0.0
asin
asin(_ value: Float) -> (Float)
Returns the arcsine of a floating-point value in radians.
var arcsine = asin(0.0) // arcsine equals 0.0
atan
atan(_ value: Float) -> (Float)
Returns the arctangent of a floating-point value in radians.
var arctangent = atan(1.5) // arctangent equals 0.98279372324733
atan2 (8.10)
atan2(y: Float, x: Float) -> (Float)
Computes the arc tangent of y / x using the signs of arguments to determine the correct quadrant.
var arctangent2 = atan2(y: 7, x: 0) // arctangent2 equals 1.5708
cos
cos(_ value: Float) -> (Float)
Returns the cosine of a floating-point value in radians.
var cosine = cos(0.0) // cosine equals 1.0
exp
exp(_ value: Float) -> (Float)
Returns the e to the power of the given value.
print("\{exp(1.0)}") // Prints the constant e, namely 2.718281828459
log
log(_ value: Float) -> (Float)
Returns the natural logarithm of a value.
var logarithm = log(1.0) // logarithm equals 0.0
max
max(_ value1: Int, _ value2: Int) -> (Int)
Returns the largest of two given integer values.
var maximum = max(3, 12) // maximum equals 12
maxf
maxf(_ value1: Float, _ value2: Float) -> (Float)
Returns the largest of two given floating-point values.
var maximumf = maxf(3.14, 12.7) // maximumf equals 12.7
min
min(_ value1: Int, _ value2: Int) -> (Int)
Returns the smallest of two given integer values.
var minimum = min(3, 12) // minimum equals 3
minf
minf(_ value1: Float, _ value2: Float) -> (Float)
Returns the smallest of two given floating-point values.
var minimumf = minf(3.14, 12.7) // minimumf equals 3.14
random
random(from: Int, to: Int) -> (Int)
Generates a random integer value that is between the two given values, following a uniform distribution.
var rand = random(from: -10, to: 1000) // rand will be a random number between -10 and 1000
randomf
randomf(from: Float, to: Float) -> (Float)
Generates a random floating-point value that is between the two given values, following a uniform distribution.
var randf = randomf(from: 45.4, to: 45.9) // randf will be a random number between 45.4 and 45.9
sin
sin(_ value: Float) -> (Float)
Returns the sine of a floating-point value in radians.
var sine = sin(0.0) // sine equals 0.0
sqrt
sqrt(_ value: Float) -> Float
Returns the square root function of the given value.
var radical = sqrt(4.0) // radical equals 2.0