matlab编写一个函数文件，用于生成等比数列人机交互

在MATLAB中，你可以创建一个名为`geometric_sequence`的函数文件，它接受两个输入参数：起始值（`start_value`）和公比（`ratio`），然后通过循环结构让用户交互地指定序列的项数（`n_terms`）。以下是创建这个函数的一个例子：

function seq = geometric_sequence(start_value, ratio, n_terms)
% Function to generate a geometric sequence with user interaction

% Check if inputs are valid
if nargin < 3
    error('Please provide the starting value, ratio, and number of terms.');
end

% Prompt for user input
disp('Enter the starting value of the geometric sequence:');
start_value = input('Start Value: ', 's');
start_value = str2double(start_value); % Convert string to number

disp('Enter the common ratio (must be non-zero): ');
ratio = input('Ratio: ', 's');
ratio = str2double(ratio);
if ratio == 0
    error('Ratio cannot be zero.');
end

disp('How many terms would you like in the sequence?');
n_terms = input('Number of Terms: ');

% Generate the sequence
seq = zeros(1, n_terms);
seq(1) = start_value; % Initialize the first term
for i = 2:n_terms
    seq(i) = seq(i-1) * ratio;
end

% Display the generated sequence
disp(['Geometric Sequence: ' num2str(seq)]);
end

当你运行这个函数并按照提示交互时，它会为你生成一个等比数列。