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https://github.com/RobTillaart/Arduino.git
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79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
//
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// FILE: semiFactorial.ino
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// AUTHOR: Rob Tillaart
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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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int m = 60;
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if (sizeof(double) == 8) m = 301;
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for (int i = 0; i < m; i++)
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{
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Serial.print(i);
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Serial.print('\t');
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Serial.print(semiFactorial(i));
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Serial.print('\t');
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Serial.print(print64(semiFactorial64(i)));
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Serial.print('\t');
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Serial.print(sci(dSemiFactorial(i), 15));
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Serial.println();
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}
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Serial.println();
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Serial.println("PERFORMANCE");
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Serial.println("n\tsemiFactorial, semiFactorial64, dSemiFactorial usec\t values");
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delay(100);
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uint8_t n = 25;
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start = micros();
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double d1 = semiFactorial(n); // will fail but indicative
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duration1 = micros() - start;
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start = micros();
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double d2 = semiFactorial64(n);
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duration2 = micros() - start;
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start = micros();
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double d3 = dSemiFactorial(n);
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duration3 = micros() - start;
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Serial.print(n);
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Serial.print('\t');
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Serial.print(duration1);
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Serial.print('\t');
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Serial.print('\t');
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Serial.print(duration2);
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Serial.print('\t');
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Serial.print('\t');
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Serial.print(duration3);
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Serial.println();
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Serial.print('\t');
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Serial.print(sci(d1, 10));
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Serial.print('\t');
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Serial.print(sci(d2, 10));
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Serial.print('\t');
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Serial.print(sci(d3, 10));
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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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