Complex Number Class

ComplexNumber.php

<?php

declare(strict_types=1);

namespace common\modules\catalog\frontend\components;

/**
 * Класс для работы с комплексными числами
 *
 * @author Котов Артём <kotov.as2@dns-shop.ru>
 */
class ComplexNumber {

	/** @var float Вещественная часть числа */
	private $real;
	/** @var float Мнимая часть числа */
	private $imag;

	public function __construct() {
	}

	public function __toString() {
		// TODO: Implement __toString() method.
	}

	public function getReal(): float {
		return $this->real;
	}

	public function getImag(): float {
		return $this->imag;
	}

	/**
	 * @param ComplexNumber $right
	 *
	 * @return self
	 */
	public function add(ComplexNumber $right): self {
		$this->real += $right->getReal();
		$this->imag += $right->getImag();

		return $this;
	}

	/**
	 * @param ComplexNumber $right
	 *
	 * @return self
	 */
	public function subtract(ComplexNumber $right) : self {
		$this->real -= $right->getReal();
		$this->imag -= $right->getImag();

		return $this;
	}

	/**
	 * @param ComplexNumber $right
	 *
	 * @return $this
	 */
	public function multiply(ComplexNumber $right) : self {
		$this->real = ($this->real * $right->getReal() - $this->imag * $right->getImag());
		$this->imag = ($this->imag * $right->getReal() + $this->real * $right->getImag());

		return $this;
	}

	/**
	 * @param ComplexNumber $right
	 *
	 * @return self
	 */
	public function divide(ComplexNumber $right) : self {
		$this->real = ($this->real * $right->getReal() + $this->imag * $right->getImag()) / ($right->getReal() ** 2 + $right->getImag() ** 2);
		$this->imag = ($this->imag * $right->getReal() + $this->real * $right->getImag());

		return $this;
	}
}