e424.asv

学习Matlab循环语句的好例子

% Script file: E424.m
% Purpose:
% To calculate the input datas' arithmetic mean and
% the geometric mean.The datas was given by user.

% Record of Revision
%      Date         Programmer          Description 
% ============   =================   =================
%    13/06/08        ZMW              Original Code

% Define Variables
% n         ----------the number of input data
% gave      ----------geometric mean
% aave      ----------arithmetic mean
% sum      -----------the sum of input datas
% mul     -----------the multiple of input datas
% ii       ---------- index
% x        ---------- the data array

disp('The programme is used to calculate the arithmetic mean and geometric mean');
% n=input('Enter the number of input data:');
ii=1;
sum=0;
mul=1;
while ii<=n
    x(ii)=input('Enter x dataset:');
    ii=ii+1;
    if x(ii)<0
        break;
    end
end
for ii=1:n
    sum=sum+x(ii);
    mul=mul*x(ii);
end
gave=mul^(1/n);
aave=sum/n;
fprintf('the arithemtic mean is : %f\n',aave);
fprintf('the geometric mean is : %f\n',gave);