public static arithmetic ( array $numbers ) : float | ||
$numbers | array | |
Résultat | float |
public static function arithmetic(array $numbers)
{
self::checkArrayLength($numbers);
return array_sum($numbers) / count($numbers);
}
public function testArithmeticMean() { $delta = 0.01; $this->assertEquals(3.5, Mean::arithmetic([2, 5]), '', $delta); $this->assertEquals(41.16, Mean::arithmetic([43, 21, 25, 42, 57, 59]), '', $delta); $this->assertEquals(1.7, Mean::arithmetic([0.5, 0.5, 1.5, 2.5, 3.5]), '', $delta); }