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Creating an empty sym variable?

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Kevin Bachovchin
Kevin Bachovchin 2013-2-15
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

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Azzi Abdelmalek
Azzi Abdelmalek 2013-2-15
x=sym([])
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Azzi Abdelmalek
Azzi Abdelmalek 2013-2-15
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

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