Tag: Mathcad

One Very Tired Horse – The Results of Our Latest Mathcad Puzzle

In our latest Mathcad puzzle, we asked you to submit your worksheets with the solutions to the below problem: One Very Tired Horse An army 40 miles long advances 40 miles while a messenger on horseback rides from the rear of the column to the front and back to the rear. How far has the messenger ridden? Assume that the …

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Our Promise to the Calculation Crowd: A New Mathcad Puzzle

Attention, everyone! As promised, we are coming up with a new puzzle to test your calculation skills with Mathcad! Many of you have given positive feedback to our recent raffle and asked for more… So, without further ado, here’s the problem: One Very Tired Horse An army 40 miles long advances 40 miles while a messenger on horseback rides from the …

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The “Fly Swatting with Mathcad” Contest: And The Winners Are…

Talking about puzzles… Last month, we ran this little puzzle here on the Mathcad blog and asked you to submit your solutions in a Mathcad worksheet. To recap, the problem was: A fly is sitting at a distance of h from a man with a fly swatter. At time t=0 the fly is pursued by the man who has a …

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Balancing a Semi-circle (My Answer to a NY Times Puzzle in Mathcad)

A recent NY Times puzzle (http://wordplay.blogs.nytimes.com/2011/05/02/numberplay-sameweight/) has a problem asking if areas C and D have the same weight when balanced as in the following picture A number of solutions have been submitted, but I decided to provide one. See PlanetPTC for a full solution and downloadable Mathcad worksheet. The idea is simple: use a double integral to compute both areas/weights: …

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Show Your Calculation Skills with Mathcad – And Win!

Today is Friday and thus time to use Mathcad for some less serious problems than calculating open channel flow, voltage drops across circuits, or the transmission gear ratio for a geared drive. Less serious? Well, some of the insects coming to life in springtime and summer may turn into a serious problem to some of us. Believe me, I have …

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