Method fromAngle

examples/extern/gmath.bundle.js:832–835

(theta)

        return new Matrix2(new Vector2(c0r0, c0r1), new Vector2(c1r0, c1r1));
    }
    static fromAngle(theta) {
        const [s, c] = theta.sincos();
        return Matrix2.from(c, s, -s, c);
    }
    static identity() {
        return Matrix2.from(1, 0, 0, 1);
    }