how convert double to string : <pre><code>public String solve() {
        ss = log(pow(y, -sqrt(abs(x)))) * (x + y / 2) + sin(atan(z));
        result = toString(ss);
        return result;
    }
</code></pre>

<p>Don't get how do I convert <code>ss</code> to string. I neen return result in String format</p>
