mathjs/docs/functions.md

Functions

Math.js contains the following functions. The functions support all available data types (Number, BigNumber, Complex, Unit, String, Matrix, and Array) where applicable.

Example usage:

math.sqrt(25);                    // Number  5
math.add(3, 4);                   // Number  7
math.add(3, math.multiply(2, 3)); // Number  9
math.log(10000, 10);              // Number  4

math.add([2, 1, 5], 3);           // Matrix  [5, 4, 8]
var a1 = math.complex(2, 3),      // Complex 2 + 3i
    a2 = math.complex(-1, 4);     // Complex -1 + 4i
math.multiply(a, b);              // Complex -14 + 5i
math.sin(math.unit(45, 'deg'));   // Number  0.70711
math.add('hello ', 'world!');     // String  'hello world!'

Arithmetic

• math.abs(x)
• math.add(x, y)
• math.ceil(x)
• math.compare(x, y)
• math.cube(x)
• math.divide(x, y)
• math.edivide(x, y)
• math.emultiply(x, y)
• math.epow(x, y)
• math.equal(x)
• math.exp(x)
• math.fix(x)
• math.floor(x)
• math.gcd(a, b, c, ...)
• math.larger(x, y)
• math.largereq(x, y)
• math.lcm(a, b, c, ...)
• math.log(x [, base])
• math.log10(x)
• math.mod(x, y)
• math.multiply(x, y)
• math.norm(x [, p])
• math.pow(x, y)
• math.round(x [, n])
• math.sign()
• math.smaller(x, y)
• math.smallereq(x, y)
• math.subtract(x, y)
• math.sqrt(x)
• math.square(x)
• math.unaryminus(x)
• math.unequal(x)
• math.xgcd(a, b)

Complex

• math.re(x)
• math.im(x)
• math.arg(x)
• math.conj(x)

Construction

• math.bignumber(x)
• math.boolean(x)
• math.complex(re, im)
• math.index(a, b, c, ...)
• math.matrix(x)
• math.number(x)
• math.parser()
• math.select([x])
• math.string(x)
• math.unit(x)

Expression

• math.compile(expr)
• math.eval(expr [, scope])
• math.help(text)
• math.parse(expr [, scope])

Matrix

• math.concat(a, b, c, ... [, dim])
• math.det(x)
• math.diag(x)
• math.eye(m, n, p, ...)
• math.inv(x)
• math.ones(m, n, p, ...)
• math.range(start, end [, step])
• math.resize(x, size [, defaultValue])
• math.size(x)
• math.squeeze(x)
• math.subset(x, index [, replacement])
• math.transpose(x)
• math.zeros(m, n, p, ...)

Probability

• math.combinations(n, k)
• math.factorial(n)
• math.distribution(name)
• math.permutations(n [, k])
• math.pickRandom(array)
• math.random([min, max])
• math.randomInt([min, max])

Statistics

• math.max(a, b, c, ...)
• math.mean(a, b, c, ...)
• math.median(a, b, c, ...)
• math.min(a, b, c, ...)
• math.prod(a, b, c, ...)
• math.std(a, b, c, ...)
• math.sum(a, b, c, ...)
• math.var(a, b, c, ...)

Trigonometry

• math.acos(x)
• math.asin(x)
• math.atan(x)
• math.atan2(y, x)
• math.cos(x)
• math.cosh(x)
• math.cot(x)
• math.coth(x)
• math.csc(x)
• math.csch(x)
• math.sec(x)
• math.sech(x)
• math.sin(x)
• math.sinh(x)
• math.tan(x)
• math.tanh(x)

Units

• math.to(x, unit)

Utils

• math.config(options)
• math.clone(x)
• math.forEach(x, callback)
• math.format(value [, precision])
• math.ifElse(condition, trueExpr, falseExpr)
• math.import(filename | object, override)
• math.map(x, callback)
• math.print(template, values [, precision])
• math.typeof(x)