Bad Math Jokes

[Baluncore]

Should the limit not be negative infinity?

 

[WWGD]

If you're Abelian, Commutative, alphalpha= $2\alpha$. Else, alphalpha =$\alpha^2$.

 

[jack action]

 

[jack action]

 

[WWGD]

I had to switch from using z into using w , when working with Complex numbers. All the zzzz's around in the blackboard were knocing me out to sleep.

 

[DaveC426913]

 

[WWGD]

I want to use the username "Shirley" in Mathstackexchange and ask a question about something, like the Expectation of a process being finite almost surely.

 

[jack action]

 

[berkeman]

 

[jack action]

 

[Swamp Thing]

A lot of mathematicians on a rampage:

Spoiler

Group Fury

 

[jack action]

 

[collinsmark]

View attachment 371353​

I get a lot of chess puzzles coming in on my social media feed. Most are of the form,
"Black to move. Mate in 2!"
which I read in my head,
Black to move, mate in 2 factorial, ...which is also 2.

 

[collinsmark]

(Came in on other social media feed. Not mine originally.)

New formula for $\pi$:

$$\pi = \prod_{\pi = \pi}^\pi \pi$$

 

[berkeman]

Saw this on Facebook just now advertising a local riding stable. I've replied to them asking if there is something extra included in the 1 hour ride that is not included in the 30 minute or 2-hour ride...

 

[DaveC426913]

Saw this on Facebook just now advertising a local riding stable. I've replied to them asking if there is something extra included in the 1 hour ride that is not included in the 30 minute or 2-hour ride...

View attachment 371526

There are three trails. The 120 minute trail is easiest on the horses, the 30 minute trail is harder (hillier), and the 60 minute trail is the hardest of all (pit traps and rattlesnakes).

120': Bunny trail = $100/h
30': Diamond trail = $110/h
60': Double Diamond trail = $120/h

 

[Baluncore]

It does seem that they messed up their booking fee and quantity discount.
$55 = $100/hr + $5
$120 = $100/hr + $20
$200 = $100/hr + $0

 

[martinbn]

$\sqrt{-4} \sqrt{-9} = \sqrt{-4\times -9} = \sqrt{36} = 6$
$\sqrt{-4}\sqrt{-9} = 2i\times 3i = -6$

 

[berkeman]

Saw this on Facebook just now advertising a local riding stable. I've replied to them asking if there is something extra included in the 1 hour ride that is not included in the 30 minute or 2-hour ride...

So this is their very nice reply to my question in their FB thread, which explains what is going on. They maybe should have said that in the original thread to keep folks from wondering what was going on, but okay. Maybe I'll buy a gift certificate from these folks for my granddaughter's HS graduation...

Kristina Linnea Nielsen
Mike Berke fair question, because the one hour ride involves me having to bring the horses across the river to the meeting point and is a lot of work for whoever is on staff to bring a string of horses across the river. Horses are expensive to maintain and staff deserve compensation. The 30 minute trail ride requires about 15 minutes of prep maybe 20 before the ride begins, and the hour and two hour trail ride requires 30 to 45 minutes of prep before the ride begins. I offer a price break for the two hour trail ride because I’m already bringing the horses across the river anyways. The 30 minute trail ride does not involve crossing the river, so it is much less prep for the staff members who are giving their time to offer these rides. It’s $10 more than double, if I didn’t charge more including the prep time, we would end up losing money in the long run, everyone deserves to be compensated for their time.

 

[Borg]

So the moral of the story is that you can lead a horse to water but there's a prep cost?

 

[Bandersnatch]

No no, the moral is that mathematics is divorced from reality and can lead you astray.
Now, physics - physics would have figured it out. You just need to, lessee, assume the horses are spherical, riding on an infinite charged plane...