How to make 'solve' work?

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Marcus 2014-12-21

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评论： Marcus 2014-12-21

Hello, I have just recently started using Matlab and are still learning the basics. I have tried to solve an equation but the 'solve' tool does not seem to work for me. I've put in the following:

solve(cos(x/50)-1/sqrt(2)==10^-3, x)

And it gives me the error: Undefined function or variable 'x'. How am I meant to make it work?

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回答（1 个）

Azzi Abdelmalek 2014-12-21

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https://ww2.mathworks.cn/matlabcentral/answers/167485-how-to-make-solve-work#answer_163007

在 MATLAB Online 中打开

solve('cos(x/50)-1/sqrt(2)==10^(-3)')

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Marcus 2014-12-21

I get the error: Undefined function 'syms' for input arguments of type 'char'. I am using the student version but I was sure I would still be able to use such basic features?

Marcus 2014-12-21