About Mike DeHaan

Mike DeHaan applies his Bachelor of Math in Computer Sciences degree, years of Cobol programming and quality assurance (including testing credit card interest calculations) to research and present mathematical theory for the layman.

Here in Decoded Science, Mike's main focus is mathematics. He covers basic mathematical theory, uncovers paradoxes, applies calculations to popular movies, and reports on math news.
Mike began writing professionally in 2010 as the sole proprietor of DeHaan Services.

Read his other work on Environmental Graffiti and Suite101.

Find Mike on Google+

How to Find Pythagorean Dates for Any Year

May 14, 2013 by Mike DeHaan Leave a Comment

5-12-13 Right Angle Triangle via Microsoft Mathematics Triangle Solver : image by Mike DeHaan

You can find this year’s Pythagorean dates – dates that fit into the Pythagorean theorem – with a simple spreadsheet that finds right angle days.

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Filed Under: Calculations and Formulas Tagged With: geometry, hypoteneuse, math, math problem, mathematics, pythagorean dates, Pythagorean Theorem, right triangle

How to Calculate Compound Interest

April 16, 2013 by Mike DeHaan Leave a Comment

You can use compound interest in many areas, from credit cards and loans to calculating population growth; first, you need to know how the formulas work.

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Filed Under: Calculations and Formulas Tagged With: math, mathematics

How to Calculate Simple Interest: Math Calculations

April 11, 2013 by Mike DeHaan Leave a Comment

Simple interest calculations aren't as hard as they look - especially if you know what the variables stand for, and how the terms are defined. Click for larger view. Image by Decoded Science.

Calculating simple interest is really very simple, once you learn the meaning behind the math terms and formulas used in the calculations.

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Filed Under: Calculations and Formulas Tagged With: interest, math, mathematics, simple interest

Cancer Research Applies a Markov Chain Monte Carlo Approach

March 28, 2013 by Mike DeHaan Leave a Comment

Two State Markov Chain : image by Joxemai4

Cancer research just took a leap forward, with the application of math – namely a Markov Chain Monte Carlo approach to predicting cancer progression.

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Filed Under: Calculations and Formulas, Headlines Tagged With: cancer research, cancer treatment, lung cancer, markov chain, markov chain model, math, mathematics, monte carlo, monte carlo simulation

The Circled Square Math Problem Claims Pi Equals Four

March 27, 2013 by Mike DeHaan Leave a Comment

Approximate PI from a Perimeter using the Sine Function : image by Mike DeHaan

Does the troll’s circle-square math cartoon accurately demonstrate that pi is closer to 4, instead of the accepted value, 3.1415… and so on?

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Filed Under: Calculations and Formulas Tagged With: circle, circled square, circumference, law of sines, math, math problem, mathematics, perimeter, pi, square

Decoded Science Ebooks

Using Social Science to Improve Your Health. Image by Gina Barrett Putt

Use Social Science to Improve Your Health: Social science research has uncovered many helpful tips on improving our health. Find proven methods to lose weight, become fit, quit smoking, manage drinking, improve mental health, reach goals and promote positive relationships with the help of modern social science and social media. Written by Gina Barrett Putt, M.A. in Sociology, this ebook features current research and take away points.Using Social Science to Improve Your HealthUsing Social Science to Improve Your HealthSmashwords, Amazon

Flying is Fun! is based on the aviation articles which Helen Krasner wrote for the magazine Flight Training News during the years 2011 to 2012. It begins with an article from Helen’s early days of learning to fly, My Learning-to-Fly Nightmare, which should provide encouragement for anyone who is struggling with the PPL course. The next three articles are about topics of general interest to private pilots. Then come a group of helicopter related articles, but these should still provide food for…Flying is Fun!

The Hunter and the Scorpion: In an endless cosmic chase the scorpion pursues the hunter, his intended victim, as they run across the sky. The Hunter and the Scorpion begins with the mythological lore behind two prominent easy to locate constellations: Orion, the Hunter, and Scorpius, the Scorpion. The Hunter and the Scorpion however encompasses much more than a constellation guidebook. Integrating ancient mythology, constellation lore, and modern astrophysics it tells the life story of stars an…The Hunter and the Scorpion

Unsung Heroes of Modern Physics Of course you’ve heard of Albert Einstein, creator of special and general relativity, and other famous scientists – but there are many other physics pioneers who have received very little mainstream recognition for their contributions to history. Join Ira Mark Egdall, as he explores the fascinating history of five Unsung Heroes of Modern Physics. Despite extraordinary achievements in relativity, quantum mechanics, astronomy, cosmology, or space exploratio…Unsung Heroes of Modern Physics

About Mike DeHaan

How to Find Pythagorean Dates for Any Year

How to Calculate Compound Interest

How to Calculate Simple Interest: Math Calculations

Cancer Research Applies a Markov Chain Monte Carlo Approach

The Circled Square Math Problem Claims Pi Equals Four

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