package fr.alnotz; public class Quaternion implements IsQuaternion{ private double s; private double i; private double j; private double k; public Quaternion(){ this.s = 0; this.i = 0; this.j = 0; this.k = 0; } public Quaternion(double s, double i, double j, double k){ this.s = s; this.i = i; this.j = j; this.k = k; } @Override public double getS() { return 0; } @Override public double getI() { return 0; } @Override public double getJ() { return 0; } @Override public double getK() { return 0; } @Override public void setS() { } @Override public void setI() { } @Override public void setJ() { } @Override public void setK() { } @Override public void plus(IsQuaternion quaternion) { } @Override public void times(IsQuaternion quaternion) { } @Override public void conjugate() { } @Override public boolean equals(IsQuaternion quaternion) { return false; } }