What could be better than learning math with silly problems and situations!
Source: Discrete Mathematics with Ducks by Sarah-Marie Belcastro
I’m definitely considering this book for when I start teaching Discrete Math!
Infinity is scary…
Dedication in textbook: To my grandson…
(via Spiked Math)
“Mathematics will never be the same.”
Introducing Probability 2.0
- Upgraded probability to include real numbers in the range from 0 to 2.
- Switching in the monty hall problem is now the same as not switching.
- Due to high demand, correlation now implies causation.
Graph Theory Features
- Fixed glitch in the petersen graph so it is no longer a counter-example.
- Support is no longer offered for hypergraphs.
- Added a new color to the outdated 4-color theorem. We anticipate at least 7 colors available for planar graphs by patch 1.03.
- Decimal notation will be phased out next patch. This should fix the long standing bug that 1 = 0.999…
- Due to loneliness, the set of prime numbers now includes the number 1.
- Complex numbers have been deemed no longer complex and will now be known as “easy numbers”.
- Proof by “reference to inaccessible literature” is no longer accessible.
- A new “proof by picture” widget has been added for mac users.
- Support has been added to allow division by 0 fixing the wormhole bug.
I wouldn’t mind having this one.
This is in a textbook:
The area of a washer is pi*R^2-pi*r^2, which you can simplify to pi*(R^2-r^2), but not to pi*(R-r)^2. No matter how tempting it is to make the latter simplification, it’s wrong. Don’t do it.