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Function in Matlab that calculates the nth derivative

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lilo moutila 2021-1-5

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评论： Image Analyst 2021-1-5

I want the code for a function that calculate the nth derivative without using built in function like "diff".

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Daniel Pollard 2021-1-5

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What have you tried so far?

Rik 2021-1-5

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It is not possible to do anything without builtin functions. If this is your homework question you should ask a specific question. You can find guidelines for posting homework on this forum here.

lilo moutila 2021-1-5

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@Rik we can use built in functions but not "diff"

John D'Errico 2021-1-5

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在 MATLAB Online 中打开

All of my functions are constants, so the nth derivative, (for n >= 1) is zero.

nthderiv = 0;

lilo moutila 2021-1-5

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@John I don't get your point

Daniel Pollard 2021-1-5

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If you're a complete beginner I'd suggest checking out the Matlab Onramp course, which covers all the basics you need to get started. If you've done that and are happy with basic functions, arrays and the syntax, then the next step would be to have a look at the wikipedia page for numerical differentiation. The first section on finite differences is likely what you need.

After that, have a go at writing a function which estimates a derivative. If you have a specific question about Matlab or its applications then post that, but posting a relatively advanced homework question without even trying doesn't look great.

lilo moutila 2021-1-5

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Thank you so much for your help

John D'Errico 2021-1-5

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There was no point to my comment, but your question has no meaningful answer. If you cannot use a tool like diff, then this is homework. Homework is there for you to solve, not for us to do for you.