gnu/egcs/libf2c/libF77/r_atan.c


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#include "f2c.h"

#ifdef KR_headers
double atan();
double r_atan(x) real *x;
#else
#undef abs
#include <math.h>
double r_atan(real *x)
#endif
{
return( atan(*x) );
}