/**
* @covers NumbersPHP\Calculus::adaptiveSimpson
*/
public function testAdaptiveSimpson()
{
$testCalculusAdaptiveSimpsonTestFunc = function ($x) {
return 2 * $x * $x;
};
$this->assertTrue(\NumbersPHP\Basic::numbersEqual(\NumbersPHP\Calculus::adaptiveSimpson($testCalculusAdaptiveSimpsonTestFunc, 0, 100), 666666.6666699999, \NumbersPHP\Numbers::EPSILON));
/**
* this does not work
*/
/*
$this->assertEquals(
666666.666667,
\NumbersPHP\Calculus::adaptiveSimpson($testCalculusAdaptiveSimpsonTestFunc, 0, 100),
'adaptive simpson should return an estimated definite integral of a function'
);
*/
}
/**
* @covers NumbersPHP\Matrix::rotate
*/
public function testRotate()
{
$a = \NumbersPHP\Matrix::rotate(array(array(0), array(1)), 90, 'clockwise');
$this->assertTrue(\NumbersPHP\Basic::numbersEqual($a[0][0], 1) && \NumbersPHP\Basic::numbersEqual($a[1][0], 0));
}
public function testSum()
{
$result = Basic::sum(array(1, 2));
$this->assertEquals(3, $result);
}
/**
* @covers NumbersPHP\Basic::fallingFactorial
* @expectedException \Exception
*/
public function testFallingFactorialException()
{
\NumbersPHP\Basic::fallingFactorial(-2, 5);
}
/**
* @covers NumbersPHP\Statistic::covariance
*/
public function testCovariance()
{
$this->assertTrue(\NumbersPHP\Basic::numbersEqual(\NumbersPHP\Statistic::covariance(array(-5, -4, -1, 0, 5, 100), array(-6, 5, 2, 5, 2, 6)), 66.05555555555556, \NumbersPHP\Numbers::EPSILON));
}
/**
* @covers NumbersPHP\Complex::phase
*/
public function testPhase()
{
$a = new \NumbersPHP\Complex(3, 4);
$this->assertTrue(\NumbersPHP\Basic::numbersEqual($a->phase(), 0.9272952180016122, \NumbersPHP\Numbers::EPSILON));
}
