Руководство по PHP
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bcsub

(PHP 3, PHP 4 , PHP 5)

bcsub --  Subtract one arbitrary precision number from another

Description

string bcsub ( string left_operand, string right_operand [, int scale])

Subtracts the right_operand from the left_operand and returns the result in a string. The optional scale parameter is used to set the number of digits after the decimal place in the result.

Пример 1. bcsub() example

<?php

$a = 1.234;
$b = 5;

echo bcsub($a, $b);     // -3
echo bcsub($a, $b, 4);  // -3.7660

?>

See also bcadd().

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bcsqrtУровень вышеФункции сжатия Bzip2

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