Error using fminunc function

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Linn
Linn 2019-4-12
编辑： Stephan 2019-4-12
Hi I am getting the following erroe when using "fminunc" command.
The code seems to work fine when I run using fminsearch. Does anyone know what could be the problem?
x01=[a1,b1,c1,d1,a2,b2,c2,d2,5];
opts=optimset('display','iter','tolfun',1e-15,'maxfuneval',20000,'tolx',1e-15,'maxiter',10000);
%minimised_coeff =fminsearch(@my_func,x01, opts)
minimised_coeff=fminunc(@my_func,x01,opts)
The code seems to work fine when I run using fminsearch. Does anyone know what could be the problem?
First-order
Iteration Func-count f(x) Step-size optimality
0 10 35345.4 6.52e+04
Attempt to execute SCRIPT roots as a function:
/Users/XXn/Documents/MATLAB/roots.m
Error in lineSearch
Error in lineSearch
Error in lineSearch

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采纳的回答

Stephan
Stephan 2019-4-12
编辑：Stephan 2019-4-12
Hi,
you have a script that is named roots.m - roots is an inbuilt function. This causes problems. Rename your script to solve this issue.
Best regards
Stephan

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