How to make 'solve' work?

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?

Answer 1

[Azzi Abdelmalek]

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

[Marcus]

I'm getting the error: Undefined function 'solve' for input arguments of type 'char'. Is there a problem with my version of Matlab maybe?

[Azzi Abdelmalek]

Try this

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

[Azzi Abdelmalek]

Try this

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

[Azzi Abdelmalek]

Try this

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

[Marcus]

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]

I found the error, I apparently didn't have the Symbolic Math Toolbox installed.