Write a MATLAB program to evaluate the function $$ y(x)=\ln \frac{1}{1-x} $$ for any user-specified value of \(x\), where \(x\) is a number \(<1\) (note that in is the natural logarithm, the logarithm to the base e). Use an if structure to verify that the value passed to the program is legal. If the value of \(x\) is legal, calculate \(y(x)\). If not, write a suitable error message and quit.

To write a MATLAB program to evaluate the function \(y(x) = \ln\frac{1}{1-x}\) for a user-specified value of \(x\), where \(x < 1\), follow these steps: 1. Request user to input a value for \(x\): `x = input('Enter a value for x (< 1): ');` 2. Check if the input value is legal using an `if` structure, i.e., if \(x < 1\). 3. Calculate and display \(y(x)\) if the value of \(x\) is legal: `y = log(1 / (1 - x)); fprintf('y(x) = %.2f\n', y);` 4. Display an error message and quit the program if the value of \(x\) is not legal: `fprintf('Error: The value of x must be less than 1.\n'); return;` The combined MATLAB script is as follows: ```matlab % Request user-specified value of x x = input('Enter a value for x (< 1): '); % Check if the input value is legal if x < 1 % Calculate y(x) y = log(1 / (1 - x)); % Display the calculated value fprintf('y(x) = %.2f\n', y); else % Display error message and quit fprintf('Error: The value of x must be less than 1.\n'); return end ```