Subtracting specific places in vector using diff
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sani on 9 May 2021
Commented: sani on 10 May 2021
Hi, I'm using the function diff to subtract elements in a vector. I read the docomentation and I don't think I get it well and hopefuly someone can explein it to me. can I use the diff function to subtrat between the enen places with the odd olace before it (x(2)-x(1),x(4)-x(3) and so on)? 1- is it possible? 2 - what does diff(X,n) does exactly? thanks
Matt J on 9 May 2021
Edited: Matt J on 9 May 2021
1- Not with |diff(). If you wanted to do that, it would be
2. diff(X,n) approsimates the n-th derivative of X using finite differences.
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