Initial Value of x(0)=16

I am trying to solve this equation (attached). I have wrote this code but the issue is that i can't assign the intional value of x(0)= 16.

How can I solve this issue

my code :

x(0)= 16 %( how can I make this work????)
a=16;
N=500;
for k=1:N
     x(k)= (1/2.*((x(k-1))+(a./x(k-1))))
     
    disp(x(k))
end

Answer 1

[Walter Roberson]

Offset = 1;
x(0+Offset)= 16 %( how can I make this work????)

x = 16

a=16;
N=500;
for k=1:N
    x(k+Offset)= (1/2.*((x(k-1+Offset))+(a./x(k-1+Offset))));
    disp(x(k+Offset))
end

    8.5000

    5.1912

    4.1367

    4.0023

    4.0000

    4.0000

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[Taha Alars]

Gratitude