Maple 13. How to find sum of entiries of array via summation operator?

I understand i can use loop (like "for..." or something else ) but i want do my program text more readable.
I declare array:

Code:

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A:=Array(1..5,[1,2,3,4,5])

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It is OK.Then i trying to get sum of entries of array

Code:

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S:=sum(A[i],i=1..5)

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This yields error "Error,bad index into Array"
How can i fix it?

Quote:

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Originally Posted by ICanFly

I understand i can use loop (like "for..." or something else ) but i want do my program text more readable.
I declare array:

Code:

---

A:=Array(1..5,[1,2,3,4,5])

---

It is OK.Then i trying to get sum of entries of array

Code:

---

S:=sum(A[i],i=1..5)

---

This yields error "Error,bad index into Array"
How can i fix it?

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Not sure why sum doesn't work but add does.

yep. "add' does work. tnx