#define WOKWI             // Uncomment if running on Wokwi RP2040 emulator.

#include <stdio.h>
#include <stdlib.h>
#include "pico/float.h"     // Required for using single-precision variables.
#include "pico/double.h"    // Required for using double-precision variables.
#include <math.h>
//#include "pico/stdlib.h"


/**
 * @brief EXAMPLE - HELLO_C
 *        Simple example to initialise the IOs and then 
 *        print a "Hello World!" message to the console.
 * 
 * @return int  Application return code (zero for success).
 */

float wallisProductFloat(int iterations);
double wallisProductDouble(int iterations);

float wallisProductFloat(int iterations){
    float result = 1;
    for (int i = 1; i <= iterations; ++i) {
        float number = 4 * i * i;
        result *= number / (number - 1);
    }
    return  result * 2;
}

double wallisProductDouble(int iterations){
    double result = 1;
    for (int i = 1; i <= iterations; ++i) {
        double number = 4 * i * i;
        result *= number / (number - 1);
    }
    return result * 2;
}


int main() {

#ifndef WOKWI
    // Initialise the IO as we will be using the UART
    // Only required for hardware and not needed for Wokwi
    stdio_init_all();
#endif

    // Print a console message to inform user what's going on.
    printf("Wallis Product Float is %f", wallisProductFloat(10000));
    printf("Wallis Product Double is %f", wallisProductDouble(10000));
    // Returning zero indicates everything went okay.
    return 0;
}