# Category: Essential Math

## Algebra, Asimov, and Missing Steps

When I was young, I could not get algebra. In particular, I would encounter magical operations like this: followed by: followed by (AHA!): Obviously, x was three! Only it …

## Ten Great Quick Calculators for Computer Users

From time to time, computer users may need to perform a quick calculation such as adding or multiplying two large numbers. This is particularly true if the computer user …

## Are Fingerprints Unique?

On March 11, 2004 a series of bombs exploded aboard four commuter trains in Madrid, Spain, killing 192 people and injuring 2050. The Spanish police recovered a bag containing …

## What are the odds? Flipping 10 heads in a row

singingbanana released an interesting video about the odds of flipping 10 heads in a row. It is basic probability and the video is entertaining enough to warrant sharing it …

## Teaching Prime Numbers to Children

The other day I received a math book that’s geared towards children. It’s called “You Can Count On Monsters” (USA | UK | Canada) by Professor Richard Evan Schwartz. …

## On Concavity, Calculus, and Crescents

Concavity characterizes so much of the world — from the distribution of sizes of animal species, to the potential return-on-investment from small vs large companies, to the temperature of …

## Developing Math Intuition

Today Kalid Azad released a premium edition of his well-received Math Better Explained ebook. This brand new edition (available for a limited time for just \$47) boasts a screencast …

## Interview with Derrick Niederman, author of Number Freak

In this interview we sit down with author and mathematician Derrick Niederman to discuss his engaging, recently published book about the first two hundred natural numbers, ‘Number Freak: From …

## The Cost of Not Understanding Probability Theory

Misconceptions about probability theory and statistics have major repercussions on society. From seemingly minor things like the excessive sensationalism of some headlines, all the way to the jailing of …

## Review of Math for Moms and Dads

Last weekend I had a chance to read Math for Moms and Dads, which I received from Kaplan as a review copy. This book aims to providing a friendly …