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Text File  |  1993-09-09  |  204b  |  23 lines
  1. ;Iterate! formula file
  2. ;by Brent Hugh
  3.  
  4. ;parameter and window defaults
  5. a=.5
  6. b=.5
  7. c=1
  8. d=1
  9. mu=0
  10. xmin=-20
  11. xmax=20
  12. ymin=-20
  13. ymax=20
  14.  
  15. ;the function
  16. x=c*x+a*tan(y)
  17. y=d*y+b*sec(x)
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