The Rule of 72 is a great mental math shortcut to estimate the effect of any growth rate, from quick financial calculations to population estimates. Here’s the formula:| betterexplained.com
Ratios summarize a scenario with a number, such as “income per day”. Unfortunately, this hides the explanation for how the result came about.| betterexplained.com
A sense of scale helps us better understand the world, and convey ideas more effectively. What’s more impressive?| betterexplained.com
We’re taught that exponents are repeated multiplication. This is a good introduction, but it breaks down on 3^1.5 and the brain-twisting 0^0. How do you repeat zero zero times and get 1?| betterexplained.com
Here’s a collection of time-saving math shortcuts, great for back-of-the-envelope estimates.| betterexplained.com
After understanding the exponential function, our next target is the natural logarithm.| betterexplained.com