Hello
I've got a problem with subs command in Matlab.
I have for example this part of code:
--------------------
U0=[50 50 0 0 0 0];
c=sym('c',[1,7]);
u=sym('u',[1,6]);
for i=1:6
u(i)=U0(i)*(1-c(i)/(4+c(i)))*(10/(10+c(7)));
end
cp=zeros(1,7);
r=0;
d=0.1;
U=zeros(1,6);
while r
Hi, on my MATLAB version R2013a I have an error but at a different line :
when computing c=min(a,b) the error is :
Undefined function 'min' for input arguments of type 'sym'.
Thank you Mr Richard
I'm using MATLAB 2016 and there was no problem with min command.
fortunately, after many many attempts I could find the answer. when I was using subs command in previous iteration my symbolic variables became corrupted and I had to define them again. after some modification problem solved.
In the line "c=min(a,b)" you overwrite the symbolic vector c with a scalar. In the next iteration you attempt to address c(7), which causes this error. These two variables should probably have different names.
That being said, it seems unnecessarily complicated and inefficient to use symbolic variables for this problem at all. For instance, you could define a function handle instead of the symbolic expression.
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