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Question: Can Maple write out the first n terms of a summation?

Question:Can Maple write out the first n terms of a summation?

ahmeng 40 Maple 2017
sum summation
March 17 2018
1


 

Suppose I am given the following summation:

 

sum(a*i, i = 1 .. n)

``

Can Maple write the first few terms of the summation? For example, if I want to see first three terms of the summation, I'd like Maple to output the following:

 

a + 2 a + 3 a

 

My use case is that if I am given a complicated summation, it can be useful to look at the first few terms to see if there are any patterns.

 

The things I've tried are:

 

sum(a*i, i = 1 .. 3)

6*a

 (1)

'sum(a*i, i = 1 .. 3)'

sum(a*i, i = 1 .. 3)

 (2)

eval(sum(a*i, i = 1 .. 3))

6*a

 (3)

expand(sum(a*i, i = 1 .. 3))

6*a````

 (4)

``


 

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