Please help by using Matlab

Create a sinc wave. Do so by specifying an x vector ranging from -pi to pi (pi is a reserved keyword in MATLAB of value pi) with 70 values, and then pass this vector to the sinc function. Now, amplify this sinc wave so that it has a max value of 50. Hint: this is done by mathematically manipulating the values produced by the sinc function. Plot the result, give it some title and some x and y labels. Separately plot the result again using the stem function. Note which plot represents the continuous-time function and which represents the discrete-time function.