var utils = require('../utils')
, nodes = require('../nodes');
/**
* Apply Math `fn` to `n`.
*
* @param {Unit} n
* @param {String} fn
* @return {Unit}
* @api private
*/
function math(n, fn){
utils.assertType(n, 'unit', 'n');
utils.assertString(fn, 'fn');
return new nodes.Unit(Math[fn.string](n.val), n.type);
}
math.params = ['n', 'fn'];
module.exports = math;