newton raphson optimization for the following formula

[John D'Errico]

And what is your question about MATLAB here, except for would somone please write some code for you?

[Torsten]

It was shown here how to build gradient and hessian of a scalar-valued function:

https://uk.mathworks.com/matlabcentral/answers/1995308-try-to-find-hessian-matrix?s_tid=srchtitle

[Sam Chak]

@Taniya is not a person like that. In her past questions, there were codes supplied.

[Taniya]

@John D'Errico I want to know how the equation can write in matlab, as when i try it by writing sum it was not considered the summation.

[Taniya]

@Sam Chak yes it was, and i am a researcher, some time got stuck in such a situation that may be full question pictured wrongly. thank you.

[Torsten]

I want to know how the equation can write in matlab, as when i try it by writing sum it was not considered the summation.

syms k
n = 10;
x = sym ('x',[1 n])

x = 

s = sum(x.^k)

s = 

[Sam Chak]

Hi @Taniya

Are you trying to deal to the equation symbolically?

Or, are you trying to numerically compute the values of and its derivative using the for-loop method?

[Taniya]

@Sam Chak, x is the value of observation, where n is the length of data, need to find out k by newton raphson method. but i could not programe it