# Category: Humor

# Decorative Constants

# Inside the Demented Minds of Mathematicians

I received quite a jolt when I received the most recent issue of *Mathematics Magazine*, one of the mathematical journals that I subscribe to. The article contains an interesting article on combinatorics and train tickets entitled The Lucky Tickets; here’s the first page.

But I was a little surprised when I saw the pithy description of this article on the magazine’s front cover:

Yes, they really wrote “Getting lucky on a long train ride” on the cover of the magazine.

As this is a mathematical journal, it’s impossible to tell if this was a deliberate double entendre or an honest mistake borne of, in the words of Betsy Devine and Joel E. Cohen in Absolute Zero Gravity, a certain otherworldly innocence.

# Inverse Function

# Depressing mathematical metaphors for Valentine’s Day

# Constructing the Null and Alternate Hypotheses

# Fun with units

Source: https://xkcd.com/2526/

# Bayes’ Theorem

Source: https://xkcd.com/2545/

# Fun with statistical significance

Source: https://xkcd.com/2533/

# Useful geometric formulas

Geometry textbooks always try to trick you by adding decorative stripes and dotted lines.

If you’re having trouble getting the formulas behind the joke, please see https://www.explainxkcd.com/wiki/index.php/2509:_Useful_Geometry_Formulas.