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C/C++ Source or Header  |  1991-06-10  |  95 b   |  10 lines
  1. #include "f2c.h"
  2.  
  3. double r_abs(x)
  4. real *x;
  5. {
  6. if(*x >= 0)
  7.     return(*x);
  8. return(- *x);
  9. }
  10.