how to convert value to double scalar in app designer in matlab

main.m
% Assuming the value you want to convert is stored in a variable called 'inputValue'

% Convert the value to a double scalar
doubleValue = str2double(inputValue);

% Check if the conversion was successful
if isnan(doubleValue)
    % Handle the case where the conversion failed
    disp('Conversion to double failed');
else
    % Conversion successful, 'doubleValue' now contains the double scalar value
    disp(['Converted value: ', num2str(doubleValue)]);
end
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