Archive for the ‘Mathematics’ Category

Alexa web statistics - say what?

Some interesting Web statistics that don't make much sense.

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Displacement or position?

A reader questions the use of "displacement" on some displacement-time graphs.

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Modeling tsunamis

The wave action of a tsunami can be modeled using a system of coupled partial differential equations.

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Baby Name Voyager

Use the Baby Name Voyager to compare the rise and fall of baby name popularity.

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Phase shift or phase angle?

In trigonometric graphs, is phase angle the same as phase shift? A reader challenges my statement.

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Free desktop scientific calculator from Yahoo!

The CalcMatic calculator is a nice freebie from Yahoo!

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Why surge of interest in integral exponents from the Phillipines?

There was a spike for the term "integral exponents" leading a large number of visitors from the Philippines to the Interactive Mathematics site.

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The true cost of the 12 days of Christmas

There is an index that tracks the total cost of the items in the song "12 Days of Christmas."

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The math parable

The Kingdom of Heaven is like 3x squared plus 8x minus 9

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Greek fonts in LiveMath

Sometimes the LiveMath plugin replaces normal fonts with Greek characters.

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