Archive for the ‘Mathematics’ Category

Math of ECGs: Fourier Series

ECG
This article explains how we can model the human heartbeat with a mathematical expression, using Fourier Series.

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Lines of primes

primesPrime numbers seem to be randomly distributed — but perhaps there are patterns after all.

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Financial math - how Citibank overcharges

credit CardsCredit card debt needs to be paid sometime. See how people get into hot water with fees and outrageous interest rates.

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The Gini Coefficient of wealth distribution

Gini CoefficientOne way to measure income equality is the Gini Coefficient.

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Functions

functionsThe concept of functions causes a lot of confusion. This article attempts to make things a bit clearer.

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How math helps to choose the right marriage partner

wedding ringsOne of life's toughest decisions is choosing the right mate. Math to the rescue.

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Is she beautiful? The new Golden Ratio

marquardtBeauty is defined by a new "Golden Ratio", new research shows.

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Today is “e” day (Feb 7th)

e Day Feb 7th
The number e is an important number in math. It arises in many diverse applications.

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Math of drugs and bodies (pharmacokinetics)

Why do doctors say "take 1 tablet every 3 hours"? How long does it take a drug to be absorbed?

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Camera purchase decisions - how math helps

A site selling electronics uses math concepts to help customers decide.

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