use for loop to write a sum function to achieve halfsum

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paul mary
paul mary 2019-1-28
回答： Stephan 2019-1-28
this is a task of mooc course, please help me. It spent me a lot of time.
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Stephan
Stephan 2019-1-28
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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