MathPHP\Statistics\AverageTest::testArithmeticGeometricMeanNegativeNAN PHP Method

    public function testArithmeticGeometricMeanNegativeNAN()
    {
        $this->assertNan(Average::arithmeticGeometricMean(-32, 45));
        $this->assertNan(Average::arithmeticGeometricMean(32, -45));
        $this->assertNan(Average::agm(-32, 45));
        $this->assertNan(Average::agm(32, -45));
    }