问在matlab中发布调用(使用)的函数

EN

%% HW-5 Q.1.a
% clear command screen and close all open figures if present
clc;
close all;

% display title: HW-#-Question.Number.SubSection
disp('HW-5-Q.1.a');
disp('Start of Program!');
A = 5;
B = 2;
res = 'The result is: ';
GetSum(A, B, res);
GetDiff(A,B, res);
disp('End of Program!');

function [ ] = GetDiff( num1, num2, StringRes )
%GETDIFF Summary of this function goes here
%   Detailed explanation goes here
R = num1 - num2;
X = ['For Sum: ', StringRes, num2str(R)];
disp(X);
end

function [ ] = GetSum( num1, num2, StringRes )
%GETSUM Summary of this function goes here
%   Detailed explanation goes here
R = num1 + num2;
X = ['For Sum: ', StringRes, num2str(R)];
disp(X);
end