mirror of
https://github.com/RobTillaart/Arduino.git
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80 lines
1.3 KiB
Arduino
80 lines
1.3 KiB
Arduino
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//
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// FILE: bigFactorial.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// PURPOSE: demo
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// DATE: 2021-08-05
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// URL: https://github.com/RobTillaart/statHelpers
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#include "statHelpers.h"
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#include "printHelpers.h" // to print large numbers....
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uint32_t start, duration1, duration2, duration3;
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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uint32_t m = 10000001;
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double mant = 0;
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uint32_t expo = 0;
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for (uint32_t i = 1; i < m; i *= 10)
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{
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start = millis();
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bigFactorial(i, mant, expo);
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duration1 = millis() - start;
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Serial.print(i);
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Serial.print('\t');
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Serial.print(mant, 5);
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Serial.print('e');
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Serial.print(expo);
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Serial.print('\t');
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Serial.print(duration1);
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Serial.println();
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}
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Serial.println("-----");
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Serial.println();
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m = 5;
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mant = 0;
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expo = 0;
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double f = 24;
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bool flag = false;
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while (flag == false)
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{
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f *= m++;
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while (f > 10)
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{
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f /= 10;
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expo++;
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if (expo > 0xFFFFFFF0)
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{
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flag = true;
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}
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}
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}
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mant = f;
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Serial.println();
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Serial.print(m);
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Serial.print('\t');
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Serial.print(mant, 15);
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Serial.print('e');
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Serial.print(expo);
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Serial.println();
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Serial.println("\n Done...");
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}
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void loop()
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{
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}
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// -- END OF FILE --
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