The Old Knewton Blog

Posts Tagged ‘frivolous friday

The Halls and the Oateses

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Try your hand at this question:

Two family reunions are happening at the same hotel, the Oates reunion and the Hall reunion. All 100 guests at the hotel attend at least one of the reunions. If 40 people attend the Oates reunion and 62 people attend the Hall reunion, how many people attend both reunions?

(A)  2
(B)  5
(C)  10
(D)  16
(E)  22

Answer after the jump.

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Written by Knewton

November 6, 2009 at 4:01 PM

Be brave, go ahead and divide by zero

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Ethan Hein is a content editor and social media guru at Knewton.

When you learned division in school, the teacher probably brushed off the issue of dividing by zero in one sentence: you can’t do it, moving on. You might feel like you got shortchanged by that explanation. Why not? What happens when you divide by zero?

You can’t ask the computer. Computers fail when you ask them questions with no unambiguous answer. Dividing by zero is just such a question. Folklore suggests that asking the computer to divide by zero makes it spectacularly explode or something. In reality, it returns an error message or the reply Not A Number, or it gives a wrong answer, or the program terminates, or sometimes the machine falls into an infinite loop.

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Written by Knewton

October 30, 2009 at 3:06 PM


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Processing is an open source programming language and environment for people who want to code their own animation, interactions and data visualization. It shows tons of potential for fun, interactive educational and gaming applications. Check out the project gallery to see some examples, ranging from the silly to the sublime. Project initiators Ben Fry and Casey Reas say they made it “to teach fundamentals of computer programming within a visual context and to serve as a software sketchbook and professional production tool. Processing is an alternative to proprietary software tools in the same domain.”

Anthony Mattox has made some particularly compelling artworks with Processing:

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Written by Knewton

October 16, 2009 at 7:55 PM

That’s what she said

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On a less serious note, Cole Entress explains the proper use of an idiomatic expression beloved by Michael Scott.

Written by Knewton

October 9, 2009 at 5:27 PM