２行３列の行列を加算する (多次元配列)

明解Ｃ言語入門編 > 5. 配列 >

Ruby

ma  = [[1, 2, 3], [4, 5, 6]]
mb  = [[6, 3, 4], [5, 1, 2]]
mc  = [[], []]

for i in 0..1
    for j in 0..2
        printf("%3d", mc[i][j])
    end
    puts ""
end

for i in 0..1
    for j in 0..2
        mc[i][j] = ma[i][j] + mb[i][j]
    end
end

for i in 0..1
    for j in 0..2
        printf("%3d", mc[i][j])
    end
    puts ""
end

実行結果

L:\>ruby l:\lesson_05_037.rb
0 0 0
0 0 0
7 5 7
9 6 8