help limit
 --- help for sym/limit.m ---

 LIMIT    Limit of an expression.
    LIMIT(F,x,a) takes the limit of the symbolic expression F as x -> a.
    LIMIT(F,a) uses findsym(F) as the independent variable.
    LIMIT(F) uses a = 0 as the limit point.
    LIMIT(F,x,a,'right') or LIMIT(F,x,a,'left') specify the direction
    of a one-sided limit.
 
    Examples:
      syms x a t h;
 
      limit(sin(x)/x)                 returns   1
      limit((x-2)/(x^2-4),2)          returns   1/4
      limit((1+2*t/x)^(3*x),x,inf)    returns   exp(6*t)
      limit(1/x,x,0,'right')          returns   inf
      limit(1/x,x,0,'left')           returns   -inf
      limit((sin(x+h)-sin(x))/h,h,0)  returns   cos(x)
      v = [(1 + a/x)^x, exp(-x)];
      limit(v,x,inf,'left')           returns   [exp(a),  0]

    Reference page in Help browser
       <a href="matlab:doc limit">doc limit</a>



syms n
L=limit((n*sqrt(4*n^2+3*n+1)-2*n^2)/(n+1),n,Inf)
 
L =
 
3/4
 
 
L=eval(limit((n*sqrt(4*n^2+3*n+1)-2*n^2)/(n+1),n,Inf))

L =

    0.7500

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