Re: Choosing between Lisps and Schemes

Lawrence D'Oliveiro <ldo@nz.invalid> writes:

And also because their modern incarnations are quite different from how
they were in the early days.

  I'm just following my sentimentality when choosing a LISP dialect.
  In other words, it has to be as similar as possible to the LISP
  I used to write simple functions for symbolic differentiation
  on my Pet 2001 when I was young. Something like this:

( SETQ DIFF
  ( LAMBDA( X )
    ( COND
      ( ( ATOMP X )
        ( COND
          ( ( = X 'X )
            1 )
          ( T
            0 )))
      ( T
        ( COND
          ( ( =( CAR X )'SUM )
            ( LIST 'SUM( DIFF( CADR X ))( DIFF( CADDR X )))))))))

  .