Simple calculations?

I would like to find dn1/dn2 in matlab and I have two vectors n1 and n2.

How can I find dn1/dn2 the simplest way? Are there any inbuilt functions for these kind of calculations?

Answer 1

[Andy]

Perhaps you're looking for

res = diff(n1)./diff(n2); %?

[Lizan]

Yes, the function diff works since DIFF(X), for a vector X, is [X(2)-X(1) X(3)-X(2) ... X(n)-X(n-1)].

Many thanks!

I knew it was simple.

Answer 2

[Jan]

Do you want to calculate the derivative of one vector according to the other? Do you expect the result to be a matrix? Or are you looking for the GRADIENT command?

Answer 3

[Adetunji]

x =90 91 92 93 94 95 96 97 98 99 100 y=54 55 54 54 57 57 63 56 57 56 56

am trying to compute the gradient of the above in matlab..any idea?

Answer 4

[Jackelin Estrada]

D= 9 6/12 + 7×5^3+2

[Jackelin Estrada]

in matlab

[Steven Lord]

It's not clear to me how this relates to the original question. Please post this (with a lot more information about what you're trying to do) as its own question, not as an answer on an existing question.