solve return result as the form of syms

Hi fellows,

I have written this code

syms x 
y=solve(1+(2/3)*x^4+(3/4)*x^(-3),x)

and then I got the result. But the problem is that I need the result to be called afterwards. But it seems that solve return the value as the form as syms instead of a number. So there is an error for that. Is anyone could told how to transfer the result of solve to just number instead of being as syms?

Thanks

Answer 1

[Shashank Prasanna]

Just to a double of the output:

double(y)

and voila

[xueqi]

No it doesn't work. In the workplace I can see y still is in the form of syms...

[Shashank Prasanna]

This works fine on my 2012b, what is your matlab version? I can test it out on that. Also, note that y would still be syms the output of double(y) will not be.

z = double(y)

>> whos z y Name Size Bytes Class Attributes

y         7x1               112  sym                 
z         7x1               112  double    complex