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C/C++ Source or Header  |  1991-06-10  |  102 b   |  9 lines
  1. #include "f2c.h"
  2.  
  3. double r_atn2(x,y)
  4. real *x, *y;
  5. {
  6. double atan2();
  7. return( atan2(*x,*y) );
  8. }
  9.