@stdlib/math-base-special-maxn NPM

maxn

$NPM version$ $Build Status$ $Coverage Status$

Return the maximum value.

Installation

npm install @stdlib/math-base-special-maxn

Usage

var maxn = require( '@stdlib/math-base-special-maxn' );

maxn( [x[, y[, ...args]]] )

Returns the maximum value.

var v = maxn( 4.2, 3.14 );
// returns 4.2

v = maxn( +0.0, -0.0 );
// returns +0.0

v = maxn( 4.2, 3.14, -1.0, 6.8 );
// returns 6.8

If any argument is NaN, the function returns NaN.

var v = maxn( 4.2, NaN );
// returns NaN

v = maxn( NaN, 3.14 );
// returns NaN

If not provided any arguments, the function returns -infinity.

var v = maxn();
// returns -Infinity

Notes

When an empty set is considered a subset of the extended reals (all real numbers, including positive and negative infinity), negative infinity is the least upper bound. Similar to zero being the identity element for the sum of an empty set and to one being the identity element for the product of an empty set, negative infinity is the identity element for the maximum, and thus, the function returns -infinity.

Examples

var minstd = require( '@stdlib/random-base-minstd-shuffle' );
var maxn = require( '@stdlib/math-base-special-maxn' );

var x;
var y;
var v;
var i;

for ( i = 0; i < 100; i++ ) {
    x = minstd();
    y = minstd();
    v = maxn( x, y );
    console.log( 'max(%d,%d) = %d', x, y, v );
}

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.