コード例 #1
0
        public static void CalcPi1(int digits)
        {
            StringBuilder pi = new StringBuilder("3", digits + 2);

            if (digits > 0)
            {
                pi.Append(".");
                for (int i = 0; i < digits; i += 9)
                {
                    int    nineDigits = NineDigitsOfPi.StartingAt(i + 1);
                    int    digitCount = Math.Min(digits - i, 9);
                    string ds         = string.Format("{0:D9}", nineDigits);
                    pi.Append(ds.Substring(0, digitCount));
                }
            }
        }
コード例 #2
0
        void worker_DoWork(object sender, DoWorkEventArgs e)
        {
            lblStatus.ForeColor = Color.Black;
            labelMethod.Text    = "CPU Bound - BW";

            var sw = Stopwatch.StartNew(); // time the operation

            var           digits = Convert.ToInt32(_digits.Value);
            StringBuilder pi     = new StringBuilder("3", digits + 2);

            if (_worker.CancellationPending == true)
            {
                e.Cancel = true;
                return;
            }

            if (digits > 0)
            {
                pi.Append(".");
                for (int j = 0; j < digits; j += 9)
                {
                    int    nineDigits = NineDigitsOfPi.StartingAt(j + 1);
                    int    digitCount = Math.Min(digits - j, 9);
                    string ds         = string.Format("{0:D9}", nineDigits);
                    pi.Append(ds.Substring(0, digitCount));
                    _pi.Text = pi.ToString();

                    if (_worker.CancellationPending == true)
                    {
                        _pi.AppendText("<<Cancelled>>");
                        e.Cancel = true;
                        return;
                    }
                    _worker.ReportProgress(j);
                }
            }

            textBoxPerformance.Text = Convert.ToString(sw.Elapsed);
            e.Result = 100;
        }
コード例 #3
0
        private static string DoWork(decimal workAmount)
        {
            //  int value = 1;


            var           digits = Convert.ToInt32(workAmount);
            StringBuilder pi     = new StringBuilder("3", digits + 2);


            if (digits > 0)
            {
                pi.Append(".");
                for (int j = 0; j < digits; j += 9)
                {
                    int    nineDigits = NineDigitsOfPi.StartingAt(j + 1);
                    int    digitCount = Math.Min(digits - j, 9);
                    string ds         = string.Format("{0:D9}", nineDigits);
                    pi.Append(ds.Substring(0, digitCount));
                }
            }

            return(pi.ToString());
        }