how to evaluate certain part in symbolic calculation?

I have a question with respects to a symbolic calculation Here is an example. If I define a,b,x,y as symbols and want to evaluate (a*x*y)/b at a=4,b=3. The mathlab answer was 4xy/3. Is it any way that I can get 1.3333xy instead. Here is my code

    syms a b x y
    L1=(a*x*y)/b;
    subs(L1,{a,b},{4,3})

Thanks, Vu

Answer 1

[Star Strider]

Use the vpa function:

syms a b x y
L1=(a*x*y)/b;
vpa(subs(L1,{a,b},{4,3}),5)

produces:

ans =

1.3333*x*y

[Vu]

thanks, it works.

[Star Strider]

My pleasure!