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Mathcad : PuzzlesFeed
Getting to the Root of Things….
This problem is probably better suited for the PTC Mathcad Community Page, but I’m going to post it here anyway, just because I think it’s a cool problem. A math teacher wrote to us asking about the following problem. In case you want to solve it yourself first, I’ll just show the problem before I talk about his specific question. …
Posted in Mathcad, Mathcad A to Z, Puzzles, Tips & Tricks
Tagged complex roots, exponent, fraction, fractional exponent, principal root, radical, radical sign, radical symbol, roots
8 Comments
“Words with Friends”… and Mathcad Prime 2.0
I have always been a word person. I am much more comfortable playing with words, letters, and phrases than I am playing with numbers, shapes, etc. and, I have always loved word games: Boggle, Crosswords, and Scrabble. You name it, I probably like it. So it was much to my delight when word games became popular as apps on mobile …
Math Basics: Order of Operations, Precedence, and Tricky Brainteasers
The Order of Operations and Precedence, Explained in a Brainteaser In my personal Facebook feed a few days ago, I saw this gem: If you can’t see the image, the brainteaser asks the following question: ‘What’s 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 …
Posted in Best Practices, Education, Puzzles
Tagged math, order of operations, precedence
7 Comments
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 …
Posted in Puzzles
Tagged *Solving capabilities*, download, PlanetPTC Community, puzzle, solve blocks, worksheet
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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 …
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 …
Posted in Puzzles
Tagged download, puzzle, sample worksheet, solution, winners, worksheet
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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: …
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 …
Posted in Puzzles
Tagged calculations, engineering calculations, puzzle, win, worksheet
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