<?php
error_reporting(E_ALL | E_STRICT);
// Ensure that composer has installed all dependencies
if (!file_exists(dirname(__DIR__) . DIRECTORY_SEPARATOR . '/vendor/autoload.php')) {
die("Dependencies must be installed using composer:\n\nphp composer.phar install --dev\n\n"
. "See http://getcomposer.org for help with installing composer\n");
}
// Include the Composer autoloader
$loader = include realpath(dirname(__FILE__) . '/../vendor/autoload.php');provides large number operation classes in PHP. Some classes are used for high-precision calculations. The BigInteger class is a processing class for large integers, and the BigDecimal class is a processing class for large and small numbers. Next we introduce the BigDecimal class: The implementation of BigDecimal uses BigInteger. The difference is that BigDecimal adds the concept of decimals. General float and Double data can only be used for scientific calculations or engineering calculations. Since commercial calculations require relatively high numerical precision, the java.math.BigDecimal class is used, which supports any precision determination. Points, which can be used to accurately calculate monetary values.
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