View Compilation Error

0_0_17744572_13232.cpp: In function 'int main()':
0_0_17744572_13232.cpp:25:26: error: too few arguments to function 'double calc(double, int)'
   printf("%.4lf\n",calc(l));
                          ^
0_0_17744572_13232.cpp:6:8: note: declared here
 double calc(double x,int bh){
        ^