Method __sub__

src/main/java/field/linalg/Vec4.java:1422–1440

(Object b)

	}

	@Override
	public Object __sub__(Object b) {
		Vec4 c = convertToVec4(b);
		if (c != null)
			return new Vec4(this.x - c.x, this.y - c.y, this.z - c.z, this.w - c.w);

		if (b instanceof Quat) {
			return ((Quat) b).transform(this, new Vec4());
		}
		if (b instanceof Vec4) {
			return this.add((Vec4) b);
		}

		if (b instanceof OverloadedMath)
			return ((OverloadedMath) b).__rsub__(this);

		throw new ClassCastException(" can't sub '" + b + "' by a Vec3 (" + this + ")");

	}