add(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->add(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->add(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->add(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->add(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->add(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Subtract', PHP_EOL; $x = new Complex(123); $x->subtract(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->subtract(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->subtract(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->subtract(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->subtract(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->subtract(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Multiply', PHP_EOL; $x = new Complex(123); $x->multiply(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->multiply(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->multiply(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->multiply(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->multiply(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->multiply(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Divide By', PHP_EOL; $x = new Complex(123); $x->divideBy(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->divideBy(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideBy(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideBy(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideBy(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideBy(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Divide Into', PHP_EOL; $x = new Complex(123); $x->divideInto(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->divideInto(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideInto(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideInto(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideInto(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideInto(new Complex(0, -1)); echo $x, PHP_EOL;