README

为PHP提供Composer安装的分数库

用法

use Spacegrass\Fraction;

echo new Fraction(1, 2); // 1/2
echo new Fraction(5, 2); // 2 1/2

echo Fraction::fromString('1 2/3'); // 1 2/3
echo Fraction::fromString('28/4'); // 7

echo Fraction::fromFloat(1.5); // 1 1/2

分数在构造时简化

echo new Fraction(4, 6); // 2/3

$fraction = new Fraction(2, 7);
echo $fraction->add(new Fraction(3, 11)); // 43/77

$fraction = new Fraction(6);
echo $fraction->subtract(new Fraction(2, 3)); // 5 1/3

$fraction = new Fraction(1, 2);
echo $fraction->multiply(new Fraction(1, 2)); // 1/4

$fraction = new Fraction(6, 13);
echo $fraction->divide(new Fraction(2, 7)); // 1 8/13

$fraction = new Fraction(1, 8);
$fraction->toFloat(); // 0.125

检查分数是否实际上是整数。

$fraction = new Fraction(1, 8);
$fraction->isInteger(); // false

$fraction = new Fraction(16, 8);
$fraction->isInteger(); // true

运行 composer require spacegrass/fraction

或

将包添加到您的composer.json文件中

{
    "require": {
        "spacegrass/fraction": "dev-master"
    }
}