For loop and store output values

i want to make for loop to creat an array

h1=550

h2=0.8*h1

h3=0.8*h3

..

and strore the values from h1 to h_n

i made that

what is the error

clear all
clc
for i=2:5
    h(1)=550;
 h(i)=0.8*h(i-1);
 [a(i)]=[h(i)]
end

[Ameer Hamza]

This code runs without any syntax error?

[Mohamed Nasser]

Yes

Answer 1

[Ameer Hamza]

Try corrects the logical error in your code

clc
h = zeros(1, 5);
h(1)=550;
for i=2:5
    h(i)=0.8*h(i-1);
end

[Mohamed Nasser]

what is the use of this code

h = zeros(1, 5);

[Ameer Hamza]

This is pre-allocation: https://www.mathworks.com/help/matlab/matlab_prog/preallocating-arrays.html. It is there to make code efficient.