# Homework 1-2

Due February 12, 2013, 2:25 pm

## Reminders

For the following problems you may discuss the concepts that will help solve these problems with classmates and course staff. You may not simply copy down the answers of your classmates as that is a violation of the collaboration policy. The one exception to this rule are those problems marked as “(Independent)”. You may discuss independent problems with course staff only.

## Other notes

For this following task, you will be turning in an Excel File and a text file. In the text file please label your answers clearly so that we know which answers go with which question.

1. Look at the above diagram of a baseball diamond. The catcher, lefty, is standing slightly to the third-base side of home plate. Rank all the players by order of increasing distance from Lefty; get out a ruler and use it on your screen or printout if you need. The first two in your list should be Lefty himself (he's distance zero from Lefty) and then Carlos, the pitcher, who is about 90 feet away from him. Write your answers in `YourNameHW1-2.txt`.
2. Who is the farthest away from Lefty? Let's say it's player X. Write down a list of all the players, ordered by increasing distance from X, in `YourNameHW1-2.txt`. Compare this order to the order from the previous question.

1. Download and open `HW1-2Starter.xlsx`. Look at the formulas in cells `C1` through `C5`. In cell `D1`, write a formula that's `TRUE` if `A1` is less than `5` or if both `A2` and `A3` are bigger than `2`, but is `FALSE` otherwise.
2. In cell D2, write a formula that's `TRUE` if both `A1` equals `A2` and `A3` does not equal `A4`. You can use `<>` to mean “not equals” (so that `5 <> 3` is `TRUE`), or you can use the `NOT` function.
3. In cell `D3` write an expression whose value is `7` if either `A2` or `A3` is positive, and is `A5` otherwise.
4. Save your spreadsheet as `YourNameHW1-2.xlsx`.

1. We've managed to rank the senators by Sanders-ness in class. The least Sanders-like senator is Ensign. However, Ensign only has a few recorded votes, so we will examine Coburn, the second least Sanders-like senator, instead. Rank the senators by Coburn-ness, using the spreadsheet from class.
2. How do their ranks compare to their Sanders-ness ranks? Are they exactly the opposite? Why or why not? How is this related to the baseball diamond problem? Write down your answers to these questions in `YourNameHW1-2.txt`. You do not need to pass in your Coburn-ness spreadsheet.

1. In `YourNameHW1-2.txt`, please rate how you feel the class is going so far:
E-mail `YourNameHW1-2.txt` and `YourNameHW1-2.xlsx` to `cs0931handin@cs.brown.edu`.