public function testLog() { $this->assertTrue(CMathf::equalsZt(CMathf::log(2.718281828), 1.0)); $this->assertTrue(CMathf::equalsZt(CMathf::log(148.413159103), 5.0)); $this->assertTrue(CMathf::equalsZt(CMathf::log(2), 0.69314718)); $this->assertTrue(CMathf::equalsZt(CMathf::log(148), 4.997212274)); }