Problem with disp code with variables

Question

Steven Latham 2019-12-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/496038-problem-with-disp-code-with-variables

回答： Maadhav Akula 2019-12-13

Hey round 2 for me. Working on a homework problem for a simple code for some reason it's not working and I'm not getting enough details to fix the issue the code is below. my problem is the if else lines.

clc, clear
prompt = 'Enter a WHOLE number ';
x = input(prompt);
y = sqrt(x);
if isreal(y)
    disp('The number ',x,' is a square; it is the square of the number ',y)
else
    disp(' The number ',x,' is not a square.')
end

2 个评论
显示无隐藏无

Steven Latham 2019-12-11

编辑：Steven Latham 2019-12-11

在 MATLAB Online 中打开

okay I figured out the first part of my problem I just needed to add brackets [ ] to each statement. new code below.

clc, clear
prompt = 'Enter a positive integer ';
x = input(prompt);
y = sqrt(x);
if isreal(y)
    disp(['The number ',x,' is a square; it is the square of the number ',(y)])
else
    disp([' The number ',(x),' is not a square.'])
end

Now i just need to get it to actually display the variables instead of boxes

Enter a positive integer 25
The number  is a square; it is the square of the number 

Steven Latham 2019-12-11

nope back to broken the else side of the function doesn't seem to work if i take the sqrt of 122 it still pops up in the first box rather than moving to the second.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Maadhav Akula 2019-12-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/496038-problem-with-disp-code-with-variables#answer_406262

在 MATLAB Online 中打开

If you are checking for whether a given number is a perfect square or not, then the following changes to your code might help:

clc, clear
prompt = 'Enter a WHOLE number ';
x = input(prompt);
y = sqrt(x);
if mod(y,1)==0
    disp(['The number ',num2str(x),' is a square; it is the square of the number ',num2str(y)])
else
    disp([' The number ',num2str(x),' is not a square.'])
end