How do I take complex number as an input and do operations on them in App Designer

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youssef Mostafa 2022-4-12

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https://ww2.mathworks.cn/matlabcentral/answers/1694315-how-do-i-take-complex-number-as-an-input-and-do-operations-on-them-in-app-designer

评论： Chunru 2022-4-13

I want to take input from the user as a complex number and do simple operations on them.

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Rik 2022-4-12

What have you tried?

youssef Mostafa 2022-4-12

Str2double but I couldn't get the output of the operation

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Chunru 2022-4-12

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https://ww2.mathworks.cn/matlabcentral/answers/1694315-how-do-i-take-complex-number-as-an-input-and-do-operations-on-them-in-app-designer#answer_940795

编辑：Chunru 2022-4-13

在 MATLAB Online 中打开

% Get s using input function
s = "2+3i";  
x = str2double(s)
x = 2.0000 + 3.0000i

For GUI components:

% Assume that you have a uieditfield component in your GUI application
h = uieditfield('Posiion', [100, 175, 100, 25], 'Value', '3+2i');
% here h is the handle to the UI component
% In GUI design, you can set the callback function for "ValueChangedFcn"
% within the funtion, you can access the string
s = get(h, 'Value')
% Then convert to double
x = str2double(s)
% then perform any other operation on x
% Let the final result be y = f(x) as a complex number
% convert y to string
sout = num2str(y)
% Update the edit field (or something else)
set(h, 'Value', sout)