Basic HTML version of Foils prepared Sept 20 97

Foil 56 Binary Equality Operators

From Tutorial on PERL Computational Science for Information Age Course CPS616 -- Sept 20 97. by Geoffrey C. Fox,Nancy McCracken,Tom Scavo
We have already seen equality operators
  • == ,!= for numerically equal, unequal
  • eq , ne for stringwise equal, not equal
$a <=> $b returns -1,0,1 depending if $a is respectively numerically less than, equal to, or greater than $b
$a cmp $b returns -1,0,1 depending if $a is respectively stringwise less than, equal to, or greater than $b

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