View Compilation Error

0_0_38761176_3169.cpp: In function 'int main()':
0_0_38761176_3169.cpp:28:37: error: 'fabs' was not declared in this scope; did you mean 'labs'?
   28 |                                 if (fabs(a[j][i])>eps) {
      |                                     ^~~~
      |                                     labs
0_0_38761176_3169.cpp:34:29: error: 'fabs' was not declared in this scope; did you mean 'labs'?
   34 |                         if (fabs(a[i][i])<eps ) {
      |                             ^~~~
      |                             labs
0_0_38761176_3169.cpp:48:31: error: 'fabs' was not declared in this scope; did you mean 'labs'?
   48 |                 fo(i,1,3) if (fabs(a[i][i])>eps && fabs(b[i])>eps) {
      |                               ^~~~
      |                               labs