Function transformExpn

docs/app/js/sanddance-app.js:128837–128839

(x)

    return -Math.log(-x);
}
function transformExpn(x) {
    return -Math.exp(-x);
}
function pow10(x) {
    return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x;
}