Basic HTML version of Foils prepared March 30 97

Foil 20 Arrays and Lists of Scalars(data) V -- Element Access (Chapter 3 of Llama Book)

From PERL4 Tutorial for CPS616 Computational Science for Information Age Course CPS616 -- February 1995. by Geoffrey C. Fox
1 One can use slices as in Fortran90
  • @fred= (0..10); # defines an array with 11 entries and
  • @jeff = @fred[1,3]; # creates an array @jeff = (1,2,3);
2 Indices can (of course) be expressions as in most languages and these can be any legal scalar
  • @fred = (0..10); $a=2;
  • $b= $fred[$a-1]; # sets $b equal to 1
in Table To:

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