use for loop to write a sum function to achieve halfsum

2019 1 28

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this is a task of mooc course, please help me. It spent me a lot of time.

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Stephan 2019-1-28

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Hi,

note the triu function:

A = [1 2 3; 4 5 6; 7 8 9]
result = sum(triu(A),'all')

Best regards

Stephan

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