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https://github.com/RobTillaart/Arduino.git
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83 lines
1.6 KiB
C++
83 lines
1.6 KiB
C++
//
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// FILE: bigCombinations.ino
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// AUTHOR: Rob Tillaart
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// PURPOSE: demo
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// DATE: 2021-08-06
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// URL: https://github.com/RobTillaart/statHelpers
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#include "statHelpers.h"
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#include "printHelpers.h"
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uint32_t start, duration1;
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volatile uint32_t x;
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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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Serial.println("dcombinations(n, k); ");
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delay(10);
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start = micros();
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uint32_t nmax = 125;
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if (sizeof(double) == 8) nmax = 1020;
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for (int n = nmax - 2; n < nmax + 1; n++)
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{
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for (int k = n / 2 - 1 ; k <= n / 2 + 1; k++)
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{
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double xx = dcombinations(n, k);
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Serial.print(n);
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Serial.print('\t');
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Serial.print(k);
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Serial.print('\t');
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Serial.print(sci(xx, 15));
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Serial.println();
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}
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//Serial.println();
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}
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duration1 = micros() - start;
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Serial.println(duration1);
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Serial.println();
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Serial.println("bigCombinations(n, k, mant, expo); ");
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delay(10);
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start = micros();
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nmax = 10000000;
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for (uint32_t n = nmax - 2; n < nmax + 1; n++)
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{
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for (uint32_t k = n / 2 - 1 ; k <= n / 2 + 1; k++)
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{
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double mant = 0;
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uint32_t expo = 0;
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bigCombinations(n, k, mant, expo);
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Serial.print(n);
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Serial.print('\t');
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Serial.print(k);
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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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}
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//Serial.println();
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}
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duration1 = micros() - start;
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Serial.println(duration1);
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Serial.println();
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Serial.println("\nDone...");
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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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