mathjs/lib/expression/docs/function/arithmetic/sign.js

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.

module.exports = {
  'name': 'sign',
  'category': 'Arithmetic',
  'syntax': [
    'sign(x)'
  ],
  'description':
      'Compute the sign of a value. The sign of a value x is 1 when x>1, -1 when x<0, and 0 when x=0.',
  'examples': [
    'sign(3.5)',
    'sign(-4.2)',
    'sign(0)'
  ],
  'seealso': [
    'abs'
  ]
};