## Function: bcsub version 83

 Function: bcsub Description: Returns the difference between two arbitrary precision numbers.
 Version: 83 Status: latest Date: 2011-12-20 04:52 Summary: Import from phpjs. Programmer: jj5
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 Code: function bcsub (left_operand, right_operand, scale) { // http://jsphp.co/jsphp/fn/view/bcsub // + original by: lmeyrick (https://sourceforge.net/projects/bcmath-js/) // - depends on: _phpjs_shared_bc // * example 1: bcsub(1, 2); // * returns 1: -1 // @todo: implement these testcases // // set scale to zero // bcscale(0); // // bcmath.test.result('bcsub', 1, '-1', bcsub('1','2')); // bcmath.test.result('bcsub', 2, '-6.0000', bcsub('-1','5', 4)); // bcmath.test.result('bcsub', 3, '8728932000054820705086578390258.00', bcsub('8728932001983192837219398127471','1928372132132819737213', 2)); // bcmath.test.result('bcsub', 4, '-1.111000', bcsub('1.123', '2.234', 6)); // bcmath.test.result('bcsub', 5, '-2.20', bcsub('1.123456', '3.333333', 2)); //-2.209877 note: rounding not applicable as bcmath truncates. var libbcmath = this._phpjs_shared_bc(); var first, second, result; if (typeof(scale) == 'undefined') { scale = libbcmath.scale; } scale = ((scale < 0) ? 0 : scale); // create objects first = libbcmath.bc_init_num(); second = libbcmath.bc_init_num(); result = libbcmath.bc_init_num(); first = libbcmath.php_str2num(left_operand.toString()); second = libbcmath.php_str2num(right_operand.toString()); result = libbcmath.bc_sub(first, second, scale); if (result.n_scale > scale) { result.n_scale = scale; } return result.toString(); } You have to be logged in to edit functions.
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