How to make a function that uses a mathematical function as an input?

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Benjamin Memisevic 2019-3-12

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评论： madhan ravi 2019-3-13

采纳的回答： madhan ravi

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I want to create a function that takes two inputs

f(x) and x1

that I can put through the central finite differentiation formula;

y=(f(x1+h)-f(x1-h))/2h

where h is a constant

and the function on each side = f(x)

so for example;

f(x)=sin(x)
x1=2
y=sin(2+h)-sin(2-h)/2*h

I want to function input that i can subsititute into but I don't know how to go about it, I've looked at anonymous function, parameter and other documentation.

I just want a nudge in the right direction, not a complete answer if at all possible.

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采纳的回答

madhan ravi 2019-3-12

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https://ww2.mathworks.cn/matlabcentral/answers/449585-how-to-make-a-function-that-uses-a-mathematical-function-as-an-input#answer_364973

在 MATLAB Online 中打开

f=@(x)sin(x);

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Benjamin Memisevic 2019-3-13

Yup figured out but awesome, thanks a tonne.

Sorry for all the begginner questions, was just hard to wrap my head around the task due to its wording.

Thanks for all the help all.

madhan ravi 2019-3-13

@Benjamin: Need not be sorry. You may find this link useful:https://in.mathworks.com/help/matlab/matlab_prog/anonymous-functions.html

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