From dd99496d75a1e47566356b95c280c0fbd7c087f2 Mon Sep 17 00:00:00 2001 From: Dennis Eichhorn Date: Mon, 26 Feb 2018 14:41:10 +0100 Subject: [PATCH] Update CauchyDistributionTest.php --- .../Stochastic/Distribution/CauchyDistributionTest.php | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tests/Math/Stochastic/Distribution/CauchyDistributionTest.php b/tests/Math/Stochastic/Distribution/CauchyDistributionTest.php index 75f3c6f5f..b7680c69d 100644 --- a/tests/Math/Stochastic/Distribution/CauchyDistributionTest.php +++ b/tests/Math/Stochastic/Distribution/CauchyDistributionTest.php @@ -40,4 +40,11 @@ class CauchyDistributionTest extends \PHPUnit\Framework\TestCase self::assertEquals(0.57798, CauchyDistribution::getCdf($x, $x0, $gamma), '', 0.01); } + + public function testEntropy() + { + $gamma = 1.5; + + self::assertEquals(log(4 * M_PI * $gamma, CauchyDistribution::getEntropy($gamma), '', 0.01); + } }