public function testMultiply() { $identity = $this->getIdentityMatrix($this->size); $array = array(); for ($i = 0; $i < $this->size; $i++) { for ($j = 0; $j < $this->size; $j++) { $array[$i][$j] = rand(); } } $matrix = new LL_Matrix($array); if ($this->strassen) { $result = $matrix->strassenMultiply($identity); } else { $result = $matrix->naiveMultiply($identity); } }