Archive for the ‘Mathematics’ Category

Pi Day + 1

March 15, 2018

A late entry in the Pi Day sweepstakes: a Scott Hilburn cartoon from 2013:

Today’s the Ides of March and also Penis Festival in Japan, but neither of these fits the cartoon.

(more…)

Pi Day 2018

March 14, 2018

March 14 — 3.14 — is Pi Day, a day to celebrate the irrational number 𝜋. The usual pun for Pi Day is as Pie Day — restaurants have specials on pies — or some play on the adjective irrational — but the Mental Floss site has gone further afield:

(#1)

(more…)

The Euclid pun again

March 7, 2018

Encountered by accident a few days ago, this 2010 book of mathematical entertainments for a general readership:

Yet another occurrence of what I’ve dubbed the Euclid pun, a major groaner that turns on “Here’s looking at you, kid”, a toast attributed to Humphrey Bogart’s Rick to Ingrid Bergman’s Ilsa in the movie Casablanca.

(more…)

Two memic cartoons

March 4, 2018

For today: a Zippy playing on the Walk Into Bar joke format and a Bizarro that combines three cartoon memes: the Psychiatrist, Multiple Personality, and Batman:

(#1)

(#2) For National Multiple Personality Day, March 5th

(If you’re puzzled by the odd symbols in the cartoon — Dan Piraro says there are 4 in this strip — see this Page.)

(more…)

Operator symbols

December 27, 2017

From Kim Darnell on Facebook:

Surely I am not the first comic geek to study linear algebra who looked at the symbol for direct sums [see here] and thought, “That’s just the symbol for the X-Men rotated 45 degrees.”

This, of course, makes me wonder what superpowers the mutant known as Direct Sum would have.

There are, in fact, Unicode symbols for “circled plus” (used for the Direct Sum operator) and also “circled times” (though I’m not clear on what operator the latter is used for):

⊕ ⊗ vs. + ×

(more…)

Puns and portmanteaus, polar bears and hippos

November 1, 2017

Or: zoology, geometry, geography, and medicine. In three visual + verbal jokes that have been floating around the internet. Starting, A, with a punning coordinate bears composition — playing geometrically with polar bear — that came to me from Mike Reaser (who got it from an aggregation source), and a buildup to a portmantriple, C, that came to me from Kim Darnell (who got it from the Exploding Fish Shitposting and Senseless Drivel, Inc. Facebook page) — a combo of geometry, medicine, and animals (hippos rather than polar bears). The first led to more geometric play, B, on polar bear, taking us into medical (specifically psychiatric) territory. And then, bonus, there’s some simple geographic play, D, with polar bear.

(more…)

Guest morning name: Venn

April 11, 2017

A morning name contributed by John Wells:

(#1)

Says John,

Venn St in Clapham [district of London], commemorating two bearers of the surname: the campaigner against the slave trade, and the inventor of Venn diagrams. Who knew they were related?

(more…)

Bizarro pi(e)

March 14, 2017

For Pi Day, 3/14, from Chris Hansen, this 2005 Bizarro:

Not only the pi connection, but also a Dan Piraro piece of pie.

horsetails

February 19, 2017

… the plant, viewable locally in planters outside two office buildings, one a block north and one a block west of where I live. They thrive there; they are tough plants, aggressive even — they are invasive pest plants in South Africa and Australia — though they suffer some from vandals who manage to break their stems off. The local species, Equisetum hyemale, in a big stand:

(more…)

More number fun

August 12, 2016

(No linguistics that I can see.)

A follow-up to my posting on Collatz sequences, picking up an open question in one-symbol Smullyan systems, from an obscure 1970 paper by Stephen Isard and me.

(more…)