Function a2xy

src/plots/polar/helpers.js:127–129

(a)

    var i, j;

    function a2xy(a) {
        return [r * Math.cos(a), r * Math.sin(a)];
    }

    function findXY(va0, va1, s) {
        return findIntersectionXY(va0, va1, s, a2xy(va0));