GY-63_MS5611/libraries/statHelpers/examples/bigCombinations/bigCombinations.ino
2021-12-28 15:37:03 +01:00

83 lines
1.6 KiB
C++

//
// FILE: bigCombinations.ino
// AUTHOR: Rob Tillaart
// PURPOSE: demo
// DATE: 2021-08-06
// URL: https://github.com/RobTillaart/statHelpers
#include "statHelpers.h"
#include "printHelpers.h"
uint32_t start, duration1;
volatile uint32_t x;
void setup()
{
Serial.begin(115200);
Serial.println(__FILE__);
Serial.println("dcombinations(n, k); ");
delay(10);
start = micros();
uint32_t nmax = 125;
if (sizeof(double) == 8) nmax = 1020;
for (int n = nmax - 2; n < nmax + 1; n++)
{
for (int k = n / 2 - 1 ; k <= n / 2 + 1; k++)
{
double xx = dcombinations(n, k);
Serial.print(n);
Serial.print('\t');
Serial.print(k);
Serial.print('\t');
Serial.print(sci(xx, 15));
Serial.println();
}
//Serial.println();
}
duration1 = micros() - start;
Serial.println(duration1);
Serial.println();
Serial.println("bigCombinations(n, k, mant, expo); ");
delay(10);
start = micros();
nmax = 10000000;
for (uint32_t n = nmax - 2; n < nmax + 1; n++)
{
for (uint32_t k = n / 2 - 1 ; k <= n / 2 + 1; k++)
{
double mant = 0;
uint32_t expo = 0;
bigCombinations(n, k, mant, expo);
Serial.print(n);
Serial.print('\t');
Serial.print(k);
Serial.print('\t');
Serial.print(mant, 15);
Serial.print('E');
Serial.print(expo);
Serial.println();
}
//Serial.println();
}
duration1 = micros() - start;
Serial.println(duration1);
Serial.println();
Serial.println("\nDone...");
}
void loop()
{
}
// -- END OF FILE --