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2,211+ articles on WordPress, SEO, business growth, and making money online.

If I haven’t tested it myself, I don’t write about it. 16 years of building sites, breaking things, and figuring out what actually works.

You’ll find tutorials, tool reviews, marketing strategies, and the occasional honest take that might save you from an expensive mistake.

The Area of a Disk

The area of a disk is pi times radius squared. You memorized this in middle school. But do you know…

The triangle inequality sounds obvious. No side of a triangle can be longer than the other two sides combined. But…

In December 2011, India declared 2012 as National Mathematical Year to honor Ramanujan's 125th birthday. I wrote at the time…

Mathematicians have spent centuries trying to find a formula that generates all prime numbers. Euler's n²+n+41 works for 40 values…

You can figure out what day of the week any date falls on. No calendar needed. Just arithmetic. I'll teach…

Equations are the reason we can solve problems in seconds that would take hours of guesswork. I cover the basics:…

Long URLs are a pain when sharing links on social media, emails, or podcasts. WordPress has a built-in shortlink system…

Numbers are the alphabet of mathematics. But here's what most people never learn: all the complex numbers you encounter, from…

Logic is the grammar of mathematics. Without logical precision, you can't communicate ideas or verify they're correct. Propositions, truth tables,…

Fermat was convinced he'd found an infinite source of primes. He was wrong. His formula n^2 + n + 41…

This logic puzzle about three children and two friends is one of my favorites. It looks simple. Then you realize…

$Math community and coding illustration for social networks$

Math majors need communities, not just textbooks. From Math Stack Exchange and MathOverflow to Mathstodon, ArXiv and the math blogosphere,…