Why Undefined operator '==' for input arguments of type 'function_handle'
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Why do I receive the following error every time I run? "Why Undefined operator '==' for input arguments of type 'function_handle'"
Y = @(m,y) sin(theta)*m - cos(theta)*m - Q/(2*pi)*atan((m/y))
x=[];
for y = -100:0.1:100
x=[x; fzero(@(m,y) Y,25)];
end
Thanks, Eric
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Star Strider
2016 年 9 月 23 日
The fzero function solves for functions of one variable. You have two, so you would have to use fsolve or another optimisation function, and you have to address them as a vector of parameters for any of the optimisation functions to work.
I have no idea what you want to do, but this is one approach that will probably work:
Q = ...;
theta = ...;
m = ...;
Y = @(m,y) sin(theta)*m - cos(theta)*m - Q./(2*pi)*atan((m./y));
x=[];
for y = -100:0.1:100
yi = fzero(@(y) Y(m,y),25)
x=[x; yi];
end
2 件のコメント
Star Strider
2016 年 9 月 23 日
In the code you posted, you did not state what ‘Q’, ‘theta’, and ‘m’ are, so I suspect the problem is with one of them and the result of the calculations with them in your ‘Y’ function.
Please describe a bit about what you’re doing. That would help me discover where the problems may be.
Also, to clarify:
Q./(2*pi)*atan((m./y)) is the same as atan(m./y)*Q./(2*pi)
Is that what you intend?
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