mathjs

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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser and offers an integrated solution to work with numbers, big numbers, complex numbers, units, and matrices.

mathjs.org

josdejong/mathjs

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# Function random Return a random number larger or equal to `min` and smaller than `max` using a uniform distribution. ## Syntax ```js math.random() // generate a random number between 0 and 1 math.random(max) // generate a random number between 0 and max math.random(min, max) // generate a random number between min and max math.random(size) // generate a matrix with random numbers between 0 and 1 math.random(size, max) // generate a matrix with random numbers between 0 and max math.random(size, min, max) // generate a matrix with random numbers between min and max ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `size` | Array | Matrix | If provided, an array or matrix with given size and filled with random values is returned `min` | Number | Minimum boundary for the random value, included `max` | Number | Maximum boundary for the random value, excluded ### Returns Type | Description ---- | ----------- Number | Array | Matrix | A random number ## Examples ```js math.random(); // returns a random number between 0 and 1 math.random(100); // returns a random number between 0 and 100 math.random(30, 40); // returns a random number between 30 and 40 math.random([2, 3]); // returns a 2x3 matrix with random numbers between 0 and 1 ``` ## See also [randomInt](randomInt.md), [pickRandom](pickRandom.md)