Using OCTAVE,

1. Write a computer program to graph the function,
(, ) = sin() + 1

2. Write a computer program to sketch the curve of intersection of the circular cylinder 2 + 2 = 4 and the parabolic cylinder = 2.

3. Consider the following system of linear equations.
− 0.5 + 0.875 − 0.113 = 1.121
0.25 − 56 + 0.8 + = 0
+ 0.112 − + = 2
0.2 − 0.3 + 0.4 + 0.5 = 121
I. Express the system of linear equations in the form,
= .
II. Using OCTAVE,
Write a computer program to find −1.