將序列轉換爲matlab需要幫助

Question

下面是我需要轉換爲MATLAB函數序列的序列。具體地，給出{an}和n ≥ 0，使得由a0 = 3，a1 = 2定義，an = 2a(n−1) − 8/9a(n−2)爲n > 1

到目前爲止，我有：

function F = Sequence 

if n==0 

F = 0; 

else 

Fn1 = 0; F = 3; 

Fn2 = 1; F = 2; 

for k = 3:n 

Fn3 = Fn2; Fn2 = F; 

F = 2Fn1-(8/9)Fn2; 

end 

end 

Answer 1

你可以試試這個：

function [ output_seq ] = get_sequence(seq_length) 

output_seq = [3 2]; 

for iter = 3 : seq_length 
    output_seq(end + 1) = 2 * output_seq(end) ... 
     - 8/9 * output_seq(end - 1); 
end 
end