Why cant I create a function in MatLab student version?
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When I try to create a function i keep getting this error Error: Function definitions are not permitted in this context.
Here is the code I wrote
function sum = myfirst(v,w)
then I get the mentioned error
采纳的回答
Image Analyst
2014-9-6
编辑：Image Analyst
2014-9-6
You forgot to attach your m-file. Most likely, you wrote a script, say test.m, and inside there it starts off with a script and then you include the function below it in the same file, like this
clc;
result = myfirst(10,20);
function theSum = myfirst(v,w)
theSum = v+w;
To fix, declare test a function also so that you have two functions in the file, not a script and a function, like
function test()
clc;
myfirst(10,20);
function theSum = myfirst(v,w)
theSum = v+w;
If this does not fix your problem, then attach your m-file(s).
5 个评论
Image Analyst
2014-9-6
Also note I used "theSum" instead of sum(). You never, or almost never, want to use the name of a built-in function, particularly one as important as sum(), as the name of one of your variables.
Tony Montgomery
2014-9-6
John D'Errico
2014-9-6
No, there is no issue with the student version. My guess is you are just not understanding the difference between m-files in general, functions and scripts. Spend some time reading about them.
Tony Montgomery
2014-9-6
Image Analyst
2014-9-6
You marked it as accepted, but the comment before last you said "it still won't work" and you didn't attach your m-file like I suggested, so is everything working or not? Again, if you need more help, attach your m-file.
更多回答（1 个）
per isakson
2014-9-6
编辑：per isakson
2014-9-7
0 个投票
Because function sum = myfirst(v,w) must be the first executable line of the m-file. Read Function Basics, Create functions, including anonymous, local, and nested functions
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