Question 477550
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Hi,
In response to your reply: sum((3i+1), i=1, 3 ) would be a way of writing it
If I am understanding your question properly:
{{{sum((3i+1), i=1, 3 )}}} = (3*1+1) + (3*2+1)+(3*3+1) = 4 + 7 + 10 = 21