Method subScalar

docs/app/js/sanddance-app.js:69360–69362

(a)

        return this.check();
    }
    subScalar(a) {
        return this.addScalar(-a);
    }
    multiplyScalar(scalar) {
        for(let i = 0; i < this.ELEMENTS; ++i)this[i] *= scalar;
        return this.check();