Sum and product of an array: Difference between revisions
→RPL entry
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</syntaxhighlight>
=={{header|RPL}}==
{{works with|Halcyon Calc|4.2.7}}
≪ DUP
DUP 1 CON DOT
SWAP ARRY→ LIST→ SWAP 1 - START * NEXT
≫
'SUMPR' STO
[ 2 4 8 -5 ] SUMPR
</syntaxhighlight>
{{out}}
<pre>
2: 9
1: -320
</pre>
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">arr = [1,2,3,4,5] # or ary = *1..5, or ary = (1..5).to_a
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