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/ MacWorld 1999 January - Disc 2 / Macworld (1999-01) (Disk 2).dmg / Serious Demos / Symbolic Composer 4.2 / Environment / System / CADAR / Symbols / Other / retro-invert < prev    next >
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Text File  |  1998-10-22  |  214 b   |  10 lines  |  [TEXT/MSWD]
  1. retro-invert symbol-list
  2.  
  3. inverts symbol-list around its own retrograde
  4. that is: first symbol is inverted around last symbol
  5. second symbol around secondlast and so on.
  6.  
  7. (retro-invert '(a b c d e))
  8. ->(-e -b c f i)
  9.  
  10.