# Module js_sys::Math[−][src]

## Functions

 abs The `Math.abs()` function returns the absolute value of a number, that is Math.abs(x) = |x| acos The `Math.acos()` function returns the arccosine (in radians) of a number, that is ∀x∊[-1;1] Math.acos(x) = arccos(x) = the unique y∊[0;π] such that cos(y)=x acosh The `Math.acosh()` function returns the hyperbolic arc-cosine of a number, that is ∀x ≥ 1 Math.acosh(x) = arcosh(x) = the unique y ≥ 0 such that cosh(y) = x asin The `Math.asin()` function returns the arcsine (in radians) of a number, that is ∀x ∊ [-1;1] Math.asin(x) = arcsin(x) = the unique y∊[-π2;π2] such that sin(y) = x asinh The `Math.asinh()` function returns the hyperbolic arcsine of a number, that is Math.asinh(x) = arsinh(x) = the unique y such that sinh(y) = x atan The `Math.atan()` function returns the arctangent (in radians) of a number, that is Math.atan(x) = arctan(x) = the unique y ∊ [-π2;π2]such that tan(y) = x atan2 The `Math.atan2()` function returns the arctangent of the quotient of its arguments. atanh The `Math.atanh()` function returns the hyperbolic arctangent of a number, that is ∀x ∊ (-1,1), Math.atanh(x) = arctanh(x) = the unique y such that tanh(y) = x cbrt The `Math.cbrt() `function returns the cube root of a number, that is Math.cbrt(x) = ∛x = the unique y such that y^3 = x ceil The `Math.ceil()` function returns the smallest integer greater than or equal to a given number. clz32 The `Math.clz32()` function returns the number of leading zero bits in the 32-bit binary representation of a number. cos The `Math.cos()` static function returns the cosine of the specified angle, which must be specified in radians. This value is length(adjacent)/length(hypotenuse). cosh The `Math.cosh()` function returns the hyperbolic cosine of a number, that can be expressed using the constant e. exp The `Math.exp()` function returns e^x, where x is the argument, and e is Euler’s number (also known as Napier’s constant), the base of the natural logarithms. expm1 The `Math.expm1()` function returns e^x - 1, where x is the argument, and e the base of the natural logarithms. floor The `Math.floor()` function returns the largest integer less than or equal to a given number. fround The `Math.fround()` function returns the nearest 32-bit single precision float representation of a Number. hypot The `Math.hypot()` function returns the square root of the sum of squares of its arguments. imul The `Math.imul()` function returns the result of the C-like 32-bit multiplication of the two parameters. log The `Math.log()` function returns the natural logarithm (base e) of a number. The JavaScript `Math.log()` function is equivalent to ln(x) in mathematics. log1p The `Math.log1p()` function returns the natural logarithm (base e) of 1 + a number. MDN documentation log2 The `Math.log2()` function returns the base 2 logarithm of a number. log10 The `Math.log10()` function returns the base 10 logarithm of a number. max The `Math.max()` function returns the largest of two numbers. min The static function `Math.min()` returns the lowest-valued number passed into it. pow The `Math.pow()` function returns the base to the exponent power, that is, base^exponent. random The `Math.random()` function returns a floating-point, pseudo-random number in the range 0–1 (inclusive of 0, but not 1) with approximately uniform distribution over that range — which you can then scale to your desired range. The implementation selects the initial seed to the random number generation algorithm; it cannot be chosen or reset by the user. round The `Math.round()` function returns the value of a number rounded to the nearest integer. sign The `Math.sign()` function returns the sign of a number, indicating whether the number is positive, negative or zero. sin The `Math.sin()` function returns the sine of a number. sinh The `Math.sinh()` function returns the hyperbolic sine of a number, that can be expressed using the constant e: Math.sinh(x) = (e^x - e^-x)/2 sqrt The `Math.sqrt()` function returns the square root of a number, that is ∀x ≥ 0, Math.sqrt(x) = √x = the unique y ≥ 0 such that y^2 = x tan The `Math.tan()` function returns the tangent of a number. tanh The `Math.tanh()` function returns the hyperbolic tangent of a number, that is tanh x = sinh x / cosh x = (e^x - e^-x)/(e^x + e^-x) = (e^2x - 1)/(e^2x + 1) trunc The `Math.trunc()` function returns the integer part of a number by removing any fractional digits.