hw03 - MIT OpenCourseWare http://ocw.mit.edu 6.055J /...

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Unformatted text preview: MIT OpenCourseWare http://ocw.mit.edu 6.055J / 2.038J The Art of Approximation in Science and Engineering Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms . 6.055J/2.038J (Spring 2008) Homework 3 Do the following warmups and problems. Due in class on Friday, 14 Mar 2008 . Open universe: Collaboration, notes, and other sources of information are encouraged. However, avoid looking up answers until you solve the problem (or have tried hard). That policy helps you learn the most from the problems. Bring a photocopy to class on the due date , trade it for a solution set, and figure out or ask me about any confusing points. Your work will be graded lightly: P (made a reasonable effort), D (did not make a reasonable effort), or F (did not turn in). Warmups 1. Explain a Unix pipeline What does this pipeline do? ls-t | head | tac [Hint: If you are not familiar with Unix commands, use the man command on Athena or on any nearby Unix or GNU/Linux system.] 2. Symmetry for algebra Use symmetry to find ( a b ) 3 . Problems 3. Highway vs city driving In lecture we derived a measure of how important drag is for a car moving at speed v for a distance d : E drag v 2 Ad ....
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hw03 - MIT OpenCourseWare http://ocw.mit.edu 6.055J /...

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