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/ NeXT Education Software Sampler 1992 Fall / NeXT Education Software Sampler 1992 Fall.iso / Programming / Source / plot3d / function.c < prev    next >
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C/C++ Source or Header  |  1992-07-26  |  175 b   |  14 lines
  1. #include <math.h>
  2.  
  3. int NFN=2;
  4.  
  5. float function(int set,float x,float y)
  6. {
  7. float r;
  8. r=sqrt(x*x+y*y);
  9. if (set==0) return(cos(r));
  10. if (set==1) return(cos(r+.75));
  11. return(0.0);
  12.  
  13. }
  14.