Creating an empty sym variable?

Hello,

How I can create an empty 0x0 sym variable? Such as x=[] x={}, expect I want to make x an empyt sym, not an empty double or cell.

Thank you, Kevin

Answer 1

[Azzi Abdelmalek]

x=sym([])

[Kevin Bachovchin]

That does create the variable but it doesn't do what I want. If I have the following code

syms y x = sym([]); Sum = x+y

makes Sum an empty sym as well. I want Sum to just be y, if x is empty. Is there a way to define x in order to do that?

[Azzi Abdelmalek]

Even with double

x=[];
y=10
a=y+x % is different from  y, it gives []
a=[x y], % gives y

Now with sym

x=sym([])
syms y
a=x+y,  % the result is x
a=[x y]  % the result is y

[Azzi Abdelmalek]

Maybe your are looking for

x=sym('0')