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Department of Electrical and Computer Engineering
The University of Texas at Austin
EE 306, Fall 2009
Problem Set 1 Solution
Due: 9 September, before class
Yale N. Patt, Instructor
TAs: Aater Suleman, Chang Joo Lee, Ameya Chaudhari, Antonius Keddis, Arvind Chandrababu, Bhargavi
Narayanasetty, Eshar Bendor, Faruk Guvenilir, Marc Kellerman, RJ Harden, Veynu Narasiman
1. Please turn in the
Student Information Sheet
with a recognizable photograph on the same day you turn
in this problem set.
2. (Adapted from problem 1.5 in the textbook)
Say we had a "black box," which takes two numbers as input and outputs their sum. See Figure 1.7a
in the Textbook. Say we had another box capable of multiplying two numbers together. See figure
1.7b. We can connect these boxes together to calculate p * (m + n). See Figure 1.7c. Assume we have
an unlimited number of these boxes. Show how to connect them together to calculate:
a. ax+b
b. The average of the four input numbers w, x, y, and z
c. a
2
+ 2ab + b
2
(can you do it with one add box and one multiply box?)
d. a
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 Spring '07
 Ambler

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