#How to solve undefined functions or variables in matlab?
The error page that appeared:
#The first time I came into contact with MATLAB, I thought the function was wrongly written when an error occurred. After checking, I found that it was not the case. I went online. After looking for a way
If the written file is not placed in the current running directory, this error will also occur
After checking the directory, I found that the path is correct
Finally, I found , please pay attention to the naming of the M file written.
The written file name needs to be consistent with the function name,
That is, if the written function is:function [rt,f,g] = twodsin(A,u0,v0,M,N)
Then the file name needs to be set totwodsin.m
Wrong naming method:
The operation after modification is correct:
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