Emeryville

Roger Knowles brings this whopper of a sign from the highways of San Francisco.



Mr. Knowles whips up a storm of mathematics to get the first three decimal places of pi. Note, the very small numbers in the carpool information are 5 to 10, and 3 to 7.

$${{880 + 600 + (80 \times 3) + (10 \times 10) + 14 - 7 - 5 } \over {580}} \approx 3.141 \approx \pi$$

This sign is located on I-80 westbound in California at the Emeryville exit.