<?php$real = array(0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1);$result = trader_cos($real);var_dump($result);/*array(12) { [0]=> float(1) [1]=> float(0.995) [2]=> float(0.98) [3]=> float(0.955) [4]=> float(0.921) [5]=> float(0.878) [6]=> float(0.825) [7]=> float(0.765) [8]=> float(0.697) [9]=> float(0.622) [10]=> float(0.54) [11]=> float(0.454)}}*/