Matlab path and undefined function

6 次查看（过去 30 天）
Nimco
Nimco 2012-8-14
Hi
I have tried several times to set Matlab path, my work is saved in the Matlab folder and I have added this folder and saved. File -> Set Path... -> Add Folder... -> Save. When I type >>addpath 'c:\mfiles' in the command space I get a message Warning: Name is nonexistent or not a directory: c:\mfiles.
I am still getting the error message
??? Input argument "y" is undefined.
Error in ==> trombe11 at 14
Tf1 =((y-b)-s1/Uc)*exp(-Ac*Uc*F/(m*cp))+(b+s1/Uc);
My mfile program:
function [dy] = trombe11(t,y )
Ac=0.2014;
Ar=2.2;
Aw=0.32;
Uc=3.1;
Uw=5.68;
Ut=1.03;
rho=1.23;
m =0.01353;
cp=1.003;
F=0.83;
b=8;
s1=15.68;
Tf1 =((y-b)-s1/Uc)*exp(-Ac*Uc*F/(m*cp))+(b+s1/Uc);
dy(1)=((Tf1-y)*0.011)/3.96 -((Ut*Ar+Uw*Aw)*(y-b)/(rho*cp*3.96));
Any help will be much appreciated.

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回答（1 个）

Wayne King
Wayne King 2012-8-14
I was the one who answered your other post
http://www.mathworks.com/matlabcentral/answers/45734-input-argument-y-is-undefined
You should not start a new thread. This the same question.
I just used 'c:\mfiles' as an example. I don't know your computer and I have no idea where you have saved trombe11.m
If you enter
>>which trombe11
at the command line what is returned?
  1 个评论
Matt Fig
Matt Fig 2012-8-15
If the OP is getting that error, finding trombe11 is not the problem. Calling it is.
So, to the OP: How are you calling this function and did you show the entire error message?

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