To create a MATLAB script that checks the coefficients of a quadratic equation and ensures they are real numbers and coeffecients are not equal to 0, you can use the following approach. The script will prompt the user to input the coefficients and will check if they are valid real numbers. If a user inputs a character or an invalid number, the script will display an error message and prompt the user to enter the number again.
Here’s a step-by-step script to achieve this:
% Function to prompt the user for a real number input
function coeff = getRealNumber(prompt)
while true
coeff = input(prompt, 's'); % Read input as a string
num = str2double(coeff); % Convert string to number
if isnan(num) || num==0 % Check if the conversion was not successful
disp('Error: Please enter a valid real number.');
else
coeff = num; % Assign the valid number to coeff
break; % Exit the loop if input is valid
end
end
end
% Main script to get the coefficients of the quadratic equation
disp('Enter the coefficients for the quadratic equation ax^2 + bx + c:');
a = getRealNumber('Enter coefficient a: ');
b = getRealNumber('Enter coefficient b: ');
c = getRealNumber('Enter coefficient c: ');
% Create the coefficients vector
coefficients = [a, b, c];
% Display the coefficients vector
disp('The coefficients vector is:');
disp(coefficients);
