07/10/10 18:16:32
>>182
public class Ve {
private double x, y, z;
public Ve(double x, double y, double z) {
this.x = x; this.y = y; this.z = z;
}
public Ve 和(Ve v) {
return new Ve(x + v.x, y + v.y, z + v.z);
}
public double 内積(Ve v) {
return x * v.x + y * v.y + z * v.z;
}
public String toString() {
return "(" + x + ", " + y + ", " + z + ")";
}
public static void main(String[] args) {
double x = 1, y = 2, z = 3, a = 4, b = 5, c = 6;
Ve α = new Ve(x, y, z);
Ve β = new Ve(a, b, c);
System.out.println("α＋β＝" + α.和(β));
System.out.println("(α、β)＝" + α.内積(β));
}
}