Question

How to calculate the sum of squares of an array of floating-point values in C

Answer 1

#include <stdio.h>

int main() {
    double arr[] = { 0.05, 0.86, 0.001, -0.29, -4.81 };
    int size = sizeof(arr) / sizeof(arr[0]);
    double sumOfSquares = 0.0;

    for (int i = 0; i < size; i++) {
        sumOfSquares += arr[i] * arr[i];
    }

    printf("%f\n", sumOfSquares);

    return 0;
}


/*
run:

23.962301

*/

 

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