how to define greek letter as syms in matlab?

I am doing symbolic computation. I am looking to define greek letters as syms

syms x y z t \epsilon

syms u(x,y,z,t) v(x,y,z,t) w(x,y,z,t) \rho(x,y,z,t)

somthing like this, but this is giving error.

[Dyuman Joshi]

They are defined as such, but you will need to use commands to display them -

syms x y z t epsilon
syms u(x,y,z,t) v(x,y,z,t) w(x,y,z,t) rho(x,y,z,t)

disp(epsilon)

ε

disp(rho)

If you want to make them appear as greek alphabets directly when used as a variable, the only option is to use a LiveScript.

[Chandan]

Thank you . Got it.

Answer 1

[Walter Roberson]

MATLAB does not permit using greek characters as variable names.

\ expressions cannot be used as variable names.

However if you use a Symbolic Toolbox syms that is the name of a Greek letter without the \ and you are using Livescript and the symbol appears as part of an expression being displayed, then it will be rendered as Greek... but only on the right hand side

syms beta Gamma
alpha = beta + Gamma

alpha = 

in Livescript this would display the beta and Gamma as Greek but not the left side alpha

For more obscurity and hacks see https://www.mathworks.com/matlabcentral/answers/463174-typing-an-equation-in-matlab-with-greek-letters#answer_375925

Note: this special formatting of names of Greek letters does not work in the Command Window -- only in Livescript (or MATLAB Answers or MATLAB Online)

[Angel Baez]

That came in handy! Thank you