matlab languge

Question 1:

Write a script for drawing the following curve using the surf function.

f(x,y)= - (x/5)²-(y/2)²-16

The range of x and y values are read from the user. Label the axis and give the diagram a title. Color the curve in red. Test your code for ?5 ? ?? ? 5 and ?5 ? ?? ? 5.

Question 2:

Write a script to generate a square matrix such that the elements of each row of the matrix consists of sequential numbers. For example, if n = 3, the matrix is:

1 2 3

4 5 6

7 8 9

Question 3:

Create a function, called MT, which takes as an argument two matrices. Both matrices are of size (1N). Let the matrices be x and y. The output of the function contains two items. First is the product of ??^t?? and the second is ????^t. Note: ??^t is the transpose of the matrix x.

Question 4:

Create grid coordinates from x, y defined in the interval [-1,1], and evaluate the expression:

x²-y²/x²+y²