Updating values in a matrix when corresponding variable values are updated

In the code below, when a, a variable in matrix w, is updated the matrix does not automatically update. Is there a way to update it as a changes automatically?

a = 5; 
w = [a 5 6] 
a = 6 
w 

[Stephen23]

No.

Answer 1

[Matt J]

You can do it with some object-oriented programming trickery, but in the long run, I don't think it's going to be what you want.

a=handleMatrix([15,1])  %handleMatrix is defined in the attachment.

a = 
    15     1

w=[a,6 7 8]

w = 
    15     1     6     7     8

a(1)=10;
w

w = 
    10     1     6     7     8