1. Using the Excel Help menu, discuss how the following functions are used. Create a simple example and demonstrate the proper use of the function.

a.TRUNC(number, num_digits)

b.ROUND(number, num_digits)

c.COMBIN(number, number_chosen)

d.DEGREES(angle)

e.SLOPE(known_ys, known_xs)

f.CEILING(number, significance)

2. Using the MATLAB Help menu, discuss how the following functions are used. Create a simple example and demonstrate the proper use of the function:

a. abs(x)

b. tic,toc

c. size (x)

d. fix (x)

e. floor (x)

f.ceil (x)

g. calendar