In MATLAB, how do you evaluate the square root of a number?

In MATLAB, the square root of a number is evaluated using the specific function called sqrt(). This built-in function is designed to compute the square root of a given value efficiently. When you provide a number as an input to the sqrt() function, it returns the principal square root of that number. For example, using sqrt(25) would yield 5, since 5 is the square root of 25.

The other options do not represent valid ways to compute the square root in MATLAB. The squareRoot() function does not exist, and attempting to use it would result in an error. Similarly, while the power() function can be used to raise a number to a specified exponent, it is not the preferred method for directly obtaining the square root. The power() function requires using an exponent of 0.5 to achieve the same result as sqrt(), which is less straightforward. Lastly, the root() function is also not defined in MATLAB for this purpose, and using it would likewise lead to an error. Therefore, the use of sqrt() is the clear and correct choice.