MATLAB: If i want to input just primes number in the GUI codes

guiMATLAB

I have GUI codes

 function key_Callback(hObject, eventdata, handles)
% hObject    handle to key (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
p=get(handles.p,'string');
p=str2num(p);
q=get(handles.q,'string');
q=str2num(q);
[D,E,N]=generatekey(p,q);
handles.D = D;
handles.E = E;
handles.N = N;
set(handles.d, 'String',D);
set(handles.e, 'String',E);
set(handles.n, 'String',N);

if I want the values p and q to be prime numbers, so if the value p and q are not prime numbers a notification will appear that the value p and q are not prime numbers and must repeat the input. pls help me this in GUI matlab.

Best Answer

if ~(isprime(p) && isprime(q))
  uiwait(msgbox('Primes only!'))
 return
end

Related Solutions

MATLAB: How to make morse code on GUI and display it on text box

Siti - in your PB_M_Callback callback (which presumably converts the alphanumeric text to morse code), the code is

% --- Executes on button press in PB_M.

function PB_M_Callback(hObject, eventdata, handles)
% hObject    handle to PB_M (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB

% handles    structure with handles and user data (see GUIDATA)

Letter=handles.Letter
morse={'.----','..---','...--','....-','.....','-....','--...','---..','----.','-----','.-','-...','-.-.','-..','.','..-.','--.','....','..','.---','-.-','.-..','--','-.','---','.--.','--.-','.-.','...','-','..-','...-','.--','-..-','-.--','--..','/'}; 
NumberOrLetter={'1','2','3','4','5','6','7','8','9','0','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',' '};
for i=1:length(Letter);
    [~, index] = ismember(Letter(i), NumberOrLetter);
    if index > 0
        set(handle.Morse,sprintf,'string');             
    end     
end

I suspect that the handles.Letter is the handle to the edit text control that the user types the alphanumeric string into. Is this the case? If true, and you want to get the string you (may) need to get the string value as handles.Letter is a handle). Once found, you will want to iterate over each character in the string and convert it to the morse code equivalent. The code

set(handle.Morse,sprintf,'string');

is incorrect - you need to specify the 'String' property before the value you want to assign to it, and sprintf is a built-in MATLAB function so I'm not sure what your intent is here.

I think you could do something like

% --- Executes on button press in PB_M.
function PB_M_Callback(hObject, eventdata, handles)
% hObject    handle to PB_M (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
word = char(get(handles.Letter, 'String'));
wordToMorseCode = '';
morse={'.----','..---','...--','....-','.....','-....','--...','---..','----.','-----','.-','-...','-.-.','-..','.','..-.','--.','....','..','.---','-.-','.-..','--','-.','---','.--.','--.-','.-.','...','-','..-','...-','.--','-..-','-.--','--..','/'}; 
NumberOrLetter={'1','2','3','4','5','6','7','8','9','0','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',' '};
for k=1:length(word);
    character = word(k);
    [~, idx] = ismember(character, NumberOrLetter)
    if ~isempty(idx)
        wordToMorseCode = [wordToMorseCode ' ' morse(idx)];
    end
end
set(handle.Morse, 'String', wordToMorseCode);

I've haven't tested the above but i think that you get the idea. I am assuming that word can be an array of one or more characters...if it is only one character, then the code should still work. I'm also assuming that there is a 1-1 mapping in the NumberOrLetter array to morse array. So we iterate over each character in the word and check to see if it is a member of NumberOrLetter. If it is, then we append the morse code equivalent to the wordToMorseCode string. Once we have iterasted over each character, then we set this string to the handle.Morse control.

The code will be similar when converting from morse code to the alphanumeric characters...but you will need to be a bit more aware that there are multiple characters in a single morse code that needs to get mapped to a single alphanumeric character.

MATLAB: Function to find the next prime number…

Method 1 This functionality does not run in MATLAB and can be used only via MuPAD Notebook Interface.

To create an MuPAD interface use the following code

 mupad
nb = allMuPADNotebooks

Then a interface screen shall pop up where you can proceed by using the nextprime(num) function.

Method 2

You could also create a user defined function to compute the next prime number. This function takes only a non-negative integers as an argument

 function p = nextprime(n)
if (isprime(n))
    p=n;
else
    while(~isprime(n))
        n=n+1;
    end
    p=n;
end
end

Best Answer

Related Solutions

MATLAB: How to make morse code on GUI and display it on text box

MATLAB: Function to find the next prime number…

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