algorithm - 需要帮助将序列转换为 matlab

Question

下面是我需要转换为 MATLAB 函数序列的序列。具体来说，给定 {an} 和 n ≥ 0，例如 a0 = 3，a1 = 2 , 和 an = 2a(n−1) − 8/9a(n−2) 对于 n > 1

到目前为止，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

你可以试试这个:

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