root/graph/JavaPopWeb/src/jp/ac/nime/computer/grpsimulator/ImgPr/Complex.java

DEFINITIONS

1. Complex
2. set
3. getReal
4. getImag
5. scaleUp
6. scaleDown
7. plus
8. sub
9. plus
10. sub

package jp.ac.nime.computer.grpsimulator.ImgPr;

/** •¡‘f�”‚ð•\‚·’P�ƒƒNƒ‰ƒX
 * @author Kikuchi
 */
public class Complex {
        protected double re_;   // �®�”•”
        protected double im_;   // ‹•�”•”
        /** ƒRƒ“ƒXƒgƒ‰ƒNƒ^
         */
        public Complex() {
                set(0.0, 0.0);
        }
        /** ƒRƒ“ƒXƒgƒ‰ƒNƒ^
         * @param r �®�”•”
         * @param i ‹•�”•”
         */
        public Complex(double r, double i) {
                set(r, i);
        }
        
        /** ’l‚̃Zƒbƒg
         * @param r �®�”•”
         * @param i ‹•�”•”
         */
        public void set(double r, double i) {
                re_ = r;
                im_ = i;
        }

        /** �®�”•”Žæ“¾
         * @return �®�”•”
         */
        public double getReal() {
                return re_;
        }
        /** ‹•�”•”Žæ“¾
         * @return ‹•�”•”
         */
        public double getImag() {
                return im_;
        }
        
        /** Šg‘å
         * @param a ‚©‚¯‚é�”
         */
        public void scaleUp(double a) {
                re_ *= a;
                im_ *= a;
        }
        
        /** �k�¬
         * @param a Š„‚é�”
         */
        public void scaleDown(double a) {
                re_ /= a;
                im_ /= a;
        }

        /** Ž©�g‚ɉÁŽZ
         * @param a —v‘fA
         */
        public void plus(Complex a) {
                re_ += a.re_;
                im_ += a.im_;
        }
        
        /** Ž©�g‚ðŒ¸ŽZ
         * @param a —v‘fA
         */
        public void sub(Complex a) {
                re_ -= a.re_;
                im_ -= a.im_;
        }
        
        /** ‰ÁŽZ a + b
         * @param a —v‘fA
         * @param b —v‘fB
         */
        public static Complex plus(Complex a, Complex b) {
                return new Complex(a.re_ + b.re_, a.im_ + b.im_);
        }

        /** Œ¸ŽZ a - b
         * @param a —v‘fA
         * @param b —v‘fB
         */
        public static Complex sub(Complex a, Complex b) {
                return new Complex(a.re_ - b.re_, a.im_ - b.im_);
        }       
        
}