Exemplos de LL_Matrix::invert em PHP

Exemplo n.º 1

Arquivo: matrix_test.php Projeto: vinamilvinamil/Learning-Library-for-PHP

 public function testInvert()
 {
     $a = array(array(2, 3), array(3, 4));
     $b = array(array(-4, 3), array(3, -2));
     $am = new LL_Matrix($a);
     $bm = new LL_Matrix($b);
     $this->assertEquals($am->invert(), $bm);
     $this->assertEquals($bm->invert(), $am);
     $this->assertEquals($am->multiply($am->invert()), $this->getIdentityMatrix(2));
     // this tests a property about matrix multiplication. could find bugs in a variety of places though, not necessarily just in invert
     $this->assertEquals($bm->multiply($bm->invert()), $this->getIdentityMatrix(2));
     // this tests a property about matrix multiplication. could find bugs in a variety of places though, not necessarily just in invert
     $this->assertEquals($this->getIdentityMatrix(4)->invert(), $this->getIdentityMatrix(4));
 }