How to create a matrix that contains members with specific different between each element ?

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Pradya Panyainkaew
Pradya Panyainkaew 2018-1-13
评论： Pradya Panyainkaew 2018-1-13
if I have matrix A that contains a distance between element n and n+1 :
A = [4 7 15]
How can I construct Matrix B that shows a result as
B = [1 5 12 27]

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per isakson
per isakson 2018-1-13
Starter:
>> cumsum([1,A])
ans =
1 5 12 27

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