¿Is this program correct and well written?
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Hello everyone, I need some help, I've just written the following code but I don't know if this is written correctly according to the text. I hope you can see if there are mistakes.
Sorry, english is not my native language.
TEXT:
A computer provider offers 10% discount, if the product costs $ 1 million or more. Also, independently offers a 5% discount if the brand is ABACO. Determine how much will pay a client for purchasing a computer, including tax.
TAX=Product Price * 0.16
CODE:
clear all
clc
M = input('Enter de computer''s brand: ', 's');
P = input('Enter the computer''s price: ');
TAX = P*0.16;
ABACO = 0.05;
if M==ABACO;
PA=P-(P*ABACO)+TAX;
fprintf('The purchase price is %d.\n',PA)
elseif M~=ABACO;
PB=P+TAX;
fprintf('The purchase price is %d.\n',PB)
elseif P>=1000000;
PC=P-(P*0.1)+TAX;
fprintf('The purchase price is %d.\n',PC)
end
Thanks.
10 个评论
Arthur
2012-11-20
Any reason to assume that's not correct? Does it work?
This is homework. Your program is incorrect. Here is a pointer:
M == ABACO
makes no sense, you are comparing a string to a scalar. While that might have its uses, I am pretty sure that is not what you intended to do. You might want to look into strcmp
Ilham Hardy
2012-11-20
And there should be PD. If ABACO and P>=1e6
another hint:
doc strcmpi
Jan
2012-11-20
Do not "clear all", when you want to "clear variables". Removing all loaded functions from the memory is a brute waste of time.
Jimmy
2012-11-20
Sean de Wolski
2012-11-20
And using input will get old after about two iterations. Either use a function to accept inputs or use an inputdlg.
Jimmy
2012-11-20
Replace the calls to "input" with "inputdlg."
You could make things simpler by getting both inputs from the same dialog box. Just pass a cell array that contains your two fields to inputdlg, like so:
D = inputdlg({'Enter de computer''s brand:','Enter the computer''s price:'});
The data will be returned as a cell array of strings, so you'll have to get it in the form you're using:
M = D{1};
P = str2double(D{2});
To learn more about input dialog boxes:
help inputdlg
Jimmy
2012-11-21
Evan
2012-11-21
No prob. :)
采纳的回答
Image Analyst
2012-11-21
0 个投票
I can see you're eventually going to need to know this FAQ entry: http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F because you're comparing floating point numbers.
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