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gnp/grid-add

Created December 28, 2011 23:18
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A Perl 1-liner for a 10x10 addition grid for my kids
Raw
grid-add
perl -e 'printf "%2s | ", "+"; for my $i (1..10) { printf "%3d ", $i; }; printf "\n---+-"; for my $i (1..10) { print "----"; } print "\n"; for my $i (1..10) { printf "%2d | ", $i; for my $j (1..10) { printf "%3d ", $i + $j; }; print "\n" }'
Raw
output.txt
+ | 1 2 3 4 5 6 7 8 9 10
---+-----------------------------------------
1 | 2 3 4 5 6 7 8 9 10 11
2 | 3 4 5 6 7 8 9 10 11 12
3 | 4 5 6 7 8 9 10 11 12 13
4 | 5 6 7 8 9 10 11 12 13 14
5 | 6 7 8 9 10 11 12 13 14 15
6 | 7 8 9 10 11 12 13 14 15 16
7 | 8 9 10 11 12 13 14 15 16 17
8 | 9 10 11 12 13 14 15 16 17 18
9 | 10 11 12 13 14 15 16 17 18 19
10 | 11 12 13 14 15 16 17 18 19 20
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