How do I use single precision numbers in a summation? My result is not coming out as expected.

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Elaina 2023-9-25

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评论： Elaina 2023-9-25

So this is the question I havve. However, when I change all the numeric values to single precision, it does not make a difference in the output. Any idea what I am doing wrong?

any suggestions would be appreciated!

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Walter Roberson 2023-9-25

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You are not doing repeated addition. Repeated addition is not the same as multiplication.

Also, a and b are scalar, so a*b is a scalar, and there is no point in sum() of a scalar.

Hint: see repelem and repmat

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Walter Roberson 2023-9-25

在 MATLAB Online 中打开

Another hint:

P*ones(1,Q)

is one way to construct a vector of size 1 x Q that contains all P

Elaina 2023-9-25

Ok, I had tried creating am array earlier but I obviously did not do it correctly. I used repmat and that fixed it. Thank you!

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MATLAB Language Fundamentals Matrices and Arrays Matrix Indexing

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