static void     M_get_log_guess(BigNumber a, BigNumber r)
        {
            double dd;

            String buf = BigNumber.ToExpString(a, 15);

            dd = BigNumber.ExpStringToDouble(buf);
            BigNumber.SetFromDouble(r, (1.00001 * Math.Log(dd)));        /* induce error of 10 ^ -5 */
        }
Beispiel #2
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        static void     SQrtGuess(BigNumber a, BigNumber r)
        {
            /* sqrt algorithm actually finds 1/sqrt */
            double dd;
            String buf = BigNumber.ToExpString(a, 15);

            scci.NumberFormat.NumberDecimalSeparator = ".";

            dd = Convert.ToDouble(buf, scci);
            BigNumber.SetFromDouble(r, (1.0 / Math.Sqrt(dd)));
        }