How to use the steepest descent method to solve a function.

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I have an example but I still am not sure how to solve this problem. Please show me step by step on how to attack this. Thank you.

Answers (2)

Vinod Sudheesh
Vinod Sudheesh on 26 Jun 2015
Edited: Vinod Sudheesh on 26 Jun 2015
The below code snippet solves this problem using the "Gradient Descend Algorithm"
x=[3 1]';
gf=@(x)([(50*x(1)-2) ; (40*x(1)-1)]);
while(norm( gf(x))>0.05)
x= x-0.01*(1/n) *gf(x);
Note that to solve this problem using the "Steepest Descend Algorithm", you will have to write additional logic for choosing the step size in every iteration.
  1 Comment
Sarvjeet Singh
Sarvjeet Singh on 28 Sep 2020
f=@ (x,y) a*(exp(bx))+c*x
how to solve
determine the general parameters for the non-linear fit using steepest descent method if the fit is given by for the data:

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seyed mohammad javad nikouei
why solve in matlab by steepest descent?


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