mathjs/lib/expression/docs/function/complex/arg.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': 'arg',
  'category': 'Complex',
  'syntax': [
    'arg(x)'
  ],
  'description':
      'Compute the argument of a complex value. If x = a+bi, the argument is computed as atan2(b, a).',
  'examples': [
    'arg(2 + 2i)',
    'atan2(3, 2)',
    'arg(2 - 3i)'
  ],
  'seealso': [
    're',
    'im',
    'conj',
    'abs'
  ]
};