Esempio n. 1
0
 function testTangent()
 {
     $p = new Math_Polynomial('3x^3 - 2x + 2');
     $tangent = Math_PolynomialOp::getTangentAt($p, 0.85);
     $this->assertEquals('4.5025x - 1.68475', $tangent->toString());
 }