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  1. /* atan example */
  2. #include <cstdio>      /* printf */
  3. #include <cmath>       /* atan */
  4.  
  5. int main ()
  6. {
  7.   double param, result;
  8.   param = 1.0;
  9.   result = atan (param) * 180 / M_PI;
  10.   printf ("The arc tangent of %f is %f degrees\n", param, result );
  11.   return 0;
  12. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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The arc tangent of 1.000000 is 45.000000 degrees
https://ideone.com/dovnEL
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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