Matlab double() returning 0 for sym

Question

Here is the code that is giving me trouble.

>> x_flex

x_flex =

sigma == 140512308373959475200/8004146304532579

>> double(x_flex)

ans =

     0

Where x_flex is a 1x1 sym.

What I want is for matlab to do the division and return a number in this case: 1.7555e+04.

Answer 1

solving x_flex for sigma seems to do make it work:

x_flex =

sigma == 140512308373959475200/8004146304532579

>> solve(x_flex)

ans =

140512308373959475200/8004146304532579

>> double(ans)

ans =

   1.7555e+04