THE MAGAZINE FOR COMPUTER APPLICATIONS
Circuit Cellar Online offers articles illustrating creative solutions
and unique applications through complete projects, practical
tutorials, and useful design techniques.

WHAT'S YOUR ENGINEERING QUOTIENT?

Problem 7—If a cellphone system is required to measure the position of a phone to an accuracy of 150 meters, what is the required accuracy for meausuring the TDOA?

ANSWER

Problem 8—Can you show by hand that 11¹⁰ – 1 is divisible by 100?

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