how to obtain single value answer from numeric expression

syms x
Ixx=int(x^4*sqrt(1+4*x^2),0,.5

Ixx = 

I want output in single value not as expression for exmple above expression value is 0.0082

Answer 1

[Star Strider]

One option is the vpa function —

syms x
Ixx=int(x^4*sqrt(1+4*x^2),0,.5)

Ixx = 

Ixx = vpa(Ixx)

Ixx = 

0.008166416469837431261269302763286

.another one is double, depending on the desired result —

syms x
Ixx=int(x^4*sqrt(1+4*x^2),0,.5)

Ixx = 

Ixx = double(Ixx)

Ixx = 0.0082

.

[Jorge Arriagada]

This is the way

[Abu Zar]

Hello if we required more simple?please.