I have Symbolic Math Toolbox but get an error with syms, why?

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Byeongchan Min 2020-5-24

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https://ww2.mathworks.cn/matlabcentral/answers/531918-i-have-symbolic-math-toolbox-but-get-an-error-with-syms-why

评论： Byeongchan Min 2020-5-24

采纳的回答： Steven Lord

在 MATLAB Online 中打开

hi, I made a code like below:

clc
syms xx t
xx=0:0.01:1;
yy=zeros; yyy=zeros;
for i=1:101
yy(i)=int(((1+2*t)/(1-t))^2,0,xx(i));
yyy(i)=xx(i)*((1+2*xx(i))/(1-xx(i)))^2/yy(i);
end
loglog(1-xx,yyy,':');

And I definitely have the Symbolic Math Toolbox. when I type ver in the prompt I can see it.

But why does this code make an error to me? My friend said he had no problem with this; and why do I?

Below is my ver result, FYI

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Walter Roberson 2020-5-24

you need to rename C:\Users\iks11\OneDrive\문서\MATLAB\syms.m or remove it from your search path.

Byeongchan Min 2020-5-24

you mean i have to remove non-English characters from the address?

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采纳的回答

Steven Lord 2020-5-24

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https://ww2.mathworks.cn/matlabcentral/answers/531918-i-have-symbolic-math-toolbox-but-get-an-error-with-syms-why#answer_437598

The function you've written or downloaded named syms.m in your OneDrive is shadowing the syms function that is part of Symbolic Math Toolbox, preventing MATLAB from calling the Symbolic Math Toolbox function.

Rename your syms.m function to a different name, maybe something like mysyms.m.