Sum of elements below main diagonal of matrix: Difference between revisions
Sum of elements below main diagonal of matrix (view source)
Revision as of 01:34, 1 December 2021
, 2 years ago→{{header|Ruby}}: Add Ruby
(Sum of elements below main diagonal of matrix en True BASIC) |
(→{{header|Ruby}}: Add Ruby) |
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</pre>
=={{header|Ruby}}==
<lang ruby>arr = [
[ 1, 3, 7, 8, 10],
[ 2, 4, 16, 14, 4],
[ 3, 1, 9, 18, 11],
[12, 14, 17, 18, 20],
[ 7, 1, 3, 9, 5]
]
p arr.each_with_index.sum {|row, x| row[0, x].sum}
</lang>
{{out}}
<pre>69
</pre>
=={{header|Wren}}==
<lang ecmascript>var m = [
| |||