n Excel, what is a formula? Give an example using an operator. How is a function different from a formula? What are three things that are true for all formulas? Provide an example of when you would use function.

What do you actually mean by "logical function"? What is its other name? Give some examples of logical functions.

explain the differences between C++, MATLAB, and VBA for Excel? 20-If you would like to make a function that returns the number given squared and would like to store it in a file named m which of the following function declarations would you use? a-function result = square(input) b-function square = result(input) c-function input = square(result) d-square = function(input) 13-If you would like to extract all of the data in the second column of a MATLAB matrix, which of the following operations would you use? (Assume the matrix is called x.) (a)   Y=x(:,1)  (b)  Y=x(1,:)  (c)  Y=x(:,2) (d)   Y=x(2,:) 12-When declaring matrix in MATLAB which of the following are valid? (Circle all that apply!) (a)  X = [4, 2, 3; 1, 2, 5] (b)X = [4 2 3;125   1 2 5] X = [4 2 4; 1 2 5] X = [1:4]

What are the top four computer functions? Utilize the example.