WeBWorK Problems

array shuffle woes

Re: array shuffle woes

by Zak Zarychta -
Number of replies: 0
Thankfully, I finally scratched this itch.

It came down to a difference in how the perlrand function and the WeBWorK random function treated the right limit. When (from the original perl subroutine) I translated the line

$j = int(rand(0,$i+1)); #random number between 0 and $i


$j = random(0,$i+1); #random number between 0 and $i+1

this occasionally (when $i+1 was selected) and would shuffle an empty value onto the array.