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mcleary/diag_diff.rb

Created May 22, 2016 23:55
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Diagonal Difference
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diag_diff.rb
M = [[11, 2, 4], [4, 5, 6], [10, 8, -12]]
main_diag = 0
sec_diag = 0
for i in 0..2
main_diag += M[i][i]
sec_diag += M[i][3 - i - 1]
end
puts "Main Diag: " + main_diag.to_s
puts "Sec Diag: " + sec_diag.to_s
puts (main_diag - sec_diag).abs
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