MATLAB: I need help with converting this to matlab

homeworkmatrix

Input the n x n matrix A and n element vector b

for k = 1 to n
for i = k + 1 to n
lik aik=akk
for j = k + 1 to n
aij to aij - likakj
end for
end for
end for

Best Answer

Try input() or inputdlg(). Try that. Come back with your attempt if you still have problems.

Related Solutions

MATLAB: This is a homework question I have been stuck on.

Hint: see this snippet

% Ask user for two floating point numbers.
defaultValue = {'45.67', '78.91'};
titleBar = 'Enter a value';
userPrompt = {'Enter floating point number 1 : ', 'Enter floating point number 2: '};
caUserInput = inputdlg(userPrompt, titleBar, 1, defaultValue);
if isempty(caUserInput),return,end; % Bail out if they clicked Cancel.
% Convert to floating point from string.
usersValue1 = str2double(caUserInput{1})
usersValue2 = str2double(caUserInput{2})
% Check for a valid number.
if isnan(usersValue1)
    % They didn't enter a number.  
    % They clicked Cancel, or entered a character, symbols, or something else not allowed.
  % Convert the default from a string and stick that into usersValue1.
    usersValue1 = str2double(defaultValue{1});
    message = sprintf('I said it had to be a number.\nI will use %.2f and continue.', usersValue1);
    uiwait(warndlg(message));
end
% Do the same for usersValue2

You can also input a string that way, so the user can enter in a bunch of numbers, then use sscanf() or textscan() to parse it into a vector of doubles. Good luck.

MATLAB: Inputdlg question

Try this:

namesList = {'Sally', 'Fred', 'John'};
groceryList = cell(length(namesList), 2);
for n=1:quanShoppers
    line1 = sprintf('Enter item for %s', namesList{n})
    line2 = 'Enter price paid'
    prompt = {line1; line2}
    dlg_title = sprintf('Shopping list for %s', namesList{n})
    userResponse = inputdlg(prompt, dlg_title, 1)
    groceryList(n, 1) = namesList(n);
    groceryList{n, 2} = userResponse{1};
    groceryList{n, 3} = userResponse{2};
end

Best Answer

Related Solutions

MATLAB: This is a homework question I have been stuck on.

MATLAB: Inputdlg question

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