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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main() {
  5.     int n, i, j;
  6.     int trace = 0;
  7.     double norm = 0.0;
  8.  
  9.     printf("Enter the size of the square matrix: ");
  10.     scanf("%d", &n);
  11.  
  12.     int matrix[n][n];
  13.  
  14.     printf("Enter the elements of the matrix:\n");
  15.     for (i = 0; i < n; i++) {
  16.         for (j = 0; j < n; j++) {
  17.             scanf("%d", &matrix[i][j]);
  18.         }
  19.     }
  20.  
  21.     // Calculate trace and norm
  22.     for (i = 0; i < n; i++) {
  23.         trace += matrix[i][i]; // sum of principal diagonal elements
  24.         for (j = 0; j < n; j++) {
  25.             norm += matrix[i][j] * matrix[i][j]; // sum of squares of elements
  26.         }
  27.     }
  28.  
  29.     norm = sqrt(norm); // Square root of sum of squares
  30.  
  31.     printf("Trace of the matrix: %d\n", trace);
  32.     printf("Norm of the matrix: %.2f\n", norm);
  33.  
  34.     return 0;
  35. }
  36.  
  37.  
Success #stdin #stdout 1.25s 5292KB
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stdin
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Standard input is empty
stdout
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Enter the size of the square matrix: Enter the elements of the matrix:
Trace of the matrix: 0
Norm of the matrix: 231216.49
https://ideone.com/iaD8RE
language:
C (clang 8.0)
created:
8 days ago
visibility:
public

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