Question

3. Create a script. Save your script to your desktop. Complete the following: a) Write your name and section number on separate lines; use separate comments to accomplish this 1.2 2.3 b) Define a variable -3.9and a variabley 7.5storing the results as variables x and y respectively c) Add π to each element of x and store the result as the variable x; add e to each element of y and store the new result as the variable y. Do not look up the values of π or e! )Find cos(z) (using radians) and cot (y) (using degrees) e)Find tan-(cos((using radians) and sin-1(cot()) (using degrees) f) Find the element-by-element product y. Be careful with the syntax! g) What element is in the third row,first column of z? Use a command to find the value (i.e do not read this out from the Workspace) 4. In a new cell (section) of the script you made in Problem 3, complete the following a) Write your name and section number on separate lines; use a block comment to accomplish this b) Find the signum (sign) of a = [5-2]. Use a built-in command to accomplish this, and store the result in a new array of data c) What are the prime factors of 24? Does it match what you would expect? d) Is 13 a prime number? How many prime numbers are there less than 27? e) Copy the initial (unedited) x and y allocations from Problem 3 and paste them into the cell for Problem 4. Then, find the floor of x, storing the result as a variable b. Finally, find the ceiling of y, storing the result as a variable c. f) Round b to the nearest integer and call the result d; then, truncate c. and store the result as e. Note: I am aware that you are working with integers here: we are looking to see that you have the process down, not necessarily that your output changes in the Command Window. g) What is the numeric value of logs (5)? h) Find the fractional form of the number 2.3 Find the values of f 5!.g 8!, and h 15! and store the results in variables of the same names

Answer 1

Here is a script in MATLAB:

x = [1.2 -3.9 5];
y = [2.3 7.5 4];

x = x + pi
y = y + exp(1)

a = cos(x)
b = cotd(y)
c = atan(a)
d = asind(b)

z = transpose(x)*y;
z(3)(1)