Variable lim3 must be of data type sym. It is currently of type double. Check where the variable is assigned a value.

Hello please help me to change the variable from double to data type sym

%Solve for lim3
syms x
x = 4;
lim3 = (3*(x-4)*sqrt(x+5))/(3-sqrt(x+5))

Answer 1

[Chunru]

%Solve for lim3
syms x
%x = 4;
lim3 = (3*(x-4)*sqrt(x+5))/(3-sqrt(x+5))

lim3 = 

[Walter Roberson]

probably to be followed by

subs(lim3, x, 4)