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fminsearch returns Not enough input arguments.

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xueqi
xueqi 2016-4-16
编辑： Minghao Luo 2020-3-9
Hi I have defined a function objfun as follows.
% function z = objfun(x)
z=x(1)^2+x(2)^2;
end
Then I tried to find its minimum (I know it is (0,0) ... I just want to do some tricks on top of this function) by using the following
% x = fminsearch(objfun,[2,2])
and got the following error
Not enough input arguments.
Error in objfun (line 3)
z=x(1)^2+x(2)^2;
Error in try1 (line 3)
x = fminsearch(objfun,[2,2])
Could anyone help me with this please? Thank you!

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采纳的回答

Walter Roberson
Walter Roberson 2016-4-16
x = fminsearch(@objfun,[2,2])
  1 个评论
Minghao Luo
Minghao Luo 2020-3-9
编辑：Minghao Luo 2020-3-9
I have met this annoying problem as well. I am very grateful your answer helped me solve it.
BTW I found you almost answered every question on this forum about fminsearch 'Not enough input arguments'. What a nice guy you are

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