MHB What is the formula for the volume of a thick crust pizza?

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The discussion features a blend of mathematical humor and playful anecdotes involving mathematicians, physicists, and engineers. It begins with a pun about a mathematical tree lacking real roots, followed by a formula for the volume of a thick crust pizza. Various jokes illustrate the different perspectives of a mathematician, physicist, and engineer on common scenarios, such as interpreting observations or solving problems. Notable examples include their reactions to a situation involving people entering and leaving a house, and their approaches to determining prime numbers. The humor extends to absurd mathematical proofs and playful logic puzzles, showcasing the quirks of each discipline. The conversation also touches on the nature of jokes and puns related to mathematics, reinforcing the lighthearted tone throughout.
  • #151
Once you've read a dictionary, every other book is just a remix.

Yes, English can be weird. It can be understood through tough thorough thought, though.

"This does not count!", cried children looking at the set of real numbers.

The equation was stolen by two unknowns.

This dialog happened during a job interview.
Q: If you were told to develop a perpetual motion machine, where would you start?
A: I'd study successful related projects.
 
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  • #152
"Google search engine receives too many requests from your IP address. This is a typical behavior of a robot. To prove that you are not a robot, injure a human being or allow a human being to come to harm through inaction."

Quantum children do their homework only while being watched.

Romans considered mathematics an easy subject. They always had X equal to 10.
 
  • #153
chris-cater-a-door-a-flat-room-and-a-three-dimensional-room-marked-apt-1d-2d-and-3-new-yorker-cartoon.jpg
 
  • #154
One student claimed that $$\ln0=e$$. To prove it, he typed $$\ln$$ and $$0$$ on a calculator and got the answer $$e$$.

Another student had to prove that $\sqrt{2}+\sqrt{3}$ is irrational. His reasoning was as follows. $\sqrt{2}=1.41$ and $\sqrt{3}=1.73$. Hence, $\sqrt{2}+\sqrt{3}=3.14=\pi$, and it is known that $\pi$ is irrational.

Q: What are regular expressions?
A: These are expressions regularly uttered by programmers during coding.
 
  • #155
Opinions without pi are just onions. :cool:
 

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  • #156
You might be a mathematician if you think that fog is a composition.

Old Macdonald had a form; $e_i\land e_i = 0$.

To some degree, 2 is also an 8. (Not sure if this is translatable into English.)

John + Sarah = love.
Error: left operand must be an l-value.
 
  • #157
Not sure if this is in here already :p.

A drunk man will find his way home, but a drunk bird may get lost forever - Shizuo Kakutani
 
  • #158
Never just use the number 2 as example because:
2 + 2 = 4
2 x 2 = 4
22 = 4
By that logic, children who haven't grasped the concept of multiplication and exponent will think that:
3 + 3 = 6
3 x 3 = 6
33 = 6
 
  • #159
Monoxdifly said:
Never just use the number 2 as example because:
2 + 2 = 4
2 x 2 = 4
22 = 4
By that logic, children who haven't grasped the concept of multiplication and exponent will think that:
3 + 3 = 6
3 x 3 = 6
33 = 6

I'm not sure if I should laugh or be worried! xD
 
  • #160

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  • #161
1. Beethoven, being deaf, could write wonderful symphonies. Why can't I, being dumb, write good research papers?

2. One couple used to stop at a certain gas station and occasionally used their air machine to fill their car's tires. Once they discovered that pumping air was no longer free.

Wife: "Why in the world did they start charging for air?"
Husband: "Inflation".

3. I gave the following problem as a part of the exam on the theory of programming languages. The variants were taken from a forum where math teachers discuss mistakes their students make on the Russian equivalent of SAT.

Factor out the sine in the expression \(3\sin x -4\sin^3x\).
  1. $\sin x (3-4^3)$
  2. $\sin x (3-4n^2)$
  3. $(\lambda x.\, 3x - 4x^3) (\sin x)$
  4. $\sin (3 x - 4^3 x)$
 
  • #162
Evgeny.Makarov said:
[*] $(\lambda x.\, 3x - 4x^3) (\sin x)$

This. How did they get that lambda there?
 
  • #163
This refers to the so-called lambda calculus. It's a formal system whose goal is to distinguish function as a mapping and the value of a function at some point. In calculus one often sees phrases like "The function $f(x)$ is differentiable at $x_0$", where $f(x)$ means not the value of $f$ at point $x$, but the function as a whole. In lambda calculus, $x^2$ means the square of some number $x$, but $\lambda x.\,x^2$ is a function that maps any $x$ to $x^2$. In addition to notation for functions, lambda calculus has a rule of simplification: $(\lambda x.\,t)s$ can be rewritten to the result of the substitution of $s$ for $x$ in $t$. This makes sense: in programming terminology, the actual parameter $s$ is substituted for a formal parameter $x$ in the body $t$ of the function. In particular, $(\lambda x.\, 3x - 4x^3) (\sin x)$ reduces to $3\sin x-4\sin^3x$.
 
  • #164
Evgeny.Makarov said:
"The function $f(x)$ is differentiable at $x_0$", where $f(x)$ means not the value of $f$ at point $x$, but the function as a whole.

Interesting. I didn't realize the role of lambda calculus in this context before.
I do realize that formally it should be "The function $f$ is differentiable at $x_0$".
Or alternatively, "The function given by $x \mapsto f(x)$ is differentiable at $x_0$".
I'm only realizing just now that the second form matches the lambda form ($\lambda x. f(x)$), while in the first form $f$ is an unspecified lambda form.
 
  • #165
  • #166
Mary is realllllly skinny...

How skinny is she?

She swallowed an olive and 2 guys left town!
 
  • #167
Person A: Knock, knock. Race condition. Who's there?
 
  • #168
Ackbach said:
Person A: Knock, knock. Race condition. Who's there?
A similar joke.

TV anchor: We present our reporter John Smith at the site of the Large Hadron Collider, where an accident occurred this morning.
Reporter: I am hearing you well.
Anchor: John, can you here us?

"Tomb" is pronounced "toom", and "womb" is pronounced "woom". Why isn't "bomb" pronounced "boom"?

I like silly jokes like the following.

"Guess what?"
"What?"
"Good guess."
 
  • #169
Wilmer said:
Mary is realllllly skinny...

How skinny is she?

She swallowed an olive and 2 guys left town!
Looks like nobody "got" that one...
She was so skinny that the swallowed olive made her appear pregnant!
 
  • #170

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  • #171
What well known expression does this represent:

...9,8,7,6,5,4,3,2,1,
 
  • #172
Wilmer said:
What well known expression does this represent:

...9,8,7,6,5,4,3,2,1,

Either the launch to the moon, or a government official counting his cards (we're just missing king, queen, jack, and 10).
 
  • #173
Good try, but no ceegar!

Clue (word lengths): --- --'-- ---- ------- --- !
 
  • #174
Anutter clue: y-- a-'-- s--- n------ y--
 
  • #175
Before I forget it: you ain't seen nothing yet!
 
  • #176
Once my student raised his index finger and middle finger at once then jokingly asked me "What number is this?". The answer is usually either two (the amount of fingers raised) or eleven (because those fingers form two 1s).

Me: "Five."
Him: "How can it be?"
Me: "Roman numeral."
Him (looking at his fingers): "Uh, yeah. Right."
 
  • #177
Pretty good, Mr.Fly!

"I miss my Ex, but my aim is getting better!"

Edit: nobody gets it?
ex wife
"miss" = with gun!
(saw that on a bumper sticker)
 
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  • #178
Roman numerals remind me (I hope it has not been posted yet).

An ancient Roman walks into a bar, lifts two fingers and says, "Five beers, please!"

An ancient Roman walks into a bar and orders a martinus. The bartender asks: "Do you mean a martini?" "If I wanted a double, I would have said so."
 
  • #179
An Arabic person walks into a bar, lifts two fingers and says, "Seven beers, please!"
 
  • #180
Monoxdifly said:
An Arabic person walks into a bar...
Outch...a steel bar?
 
  • #181
  • #182
Evgeny.Makarov said:
TIL there are Arabic numerals we all use and Arabic numerals.

An Arabic person walks into a bar, lifts two fingers (in the shape of an OK symbol or a zero), and says: 'Five beer please!' ;)
 
  • #183
If we often debate whether a number is a 6 or a 9, do Arabians also debate whether a number is a 7 or an 8 which is actually either a more than symbol or a less than symbol?
 
  • #184
The word "snob" should be a 3letter word:
which letter should be removed?
 
  • #185
"What is more beautiful: a butterfly or a square?"
"A square, of course."
"Why?"
"It has a larger group of symmetries".

I am a Unix creationist. I believe the world was created on January 1, 1970 and, as prophesized, will end on January 19, 2038.

In biology, multiplication and division are the same.

Greeks are funny: they stole a bunch of letters from mathematics and try to write with them.

A pie is a pie chart showing how much pie is left.
 
  • #186
Wilmer said:
The word "snob" should be a 3letter word:
which letter should be removed?
Geezzzz...forgot about this one; answer: remove the "n":
in my books, a snob is a sob !

2nd definition:
a snob acts as if balancing an invisible object on his nose :)
 
  • #187
I slept like a log. Ten hours seemed like 2.3.

Q: Why does 0 = 1?
A: cos 0 = 1.

In mathematics, 0! = 1.
In computer science, 0 != 1.
 
  • #188
OK Evgeny; if you saw this traffic sign: "Fine for parking",
would you park there?
 
  • #189
I probably wouldn't. But if I saw a spaceman, I would definitely park in it, man!
 
  • #190
A short poem entitled “Oxymoron”.

Poor Rich is pretty ugly.
Rich Rich is pretty pretty.
Randy Randy is going to come.​
 
  • #191
Guys, let's try to keep this thread clean. I am afraid to ask about the meaning of the last joke.
 
  • #192
I can't comprehend it at all, though probably it's not safe to ask.

You know why children hate math?
Probably because they think that numbers will make them numb.
 
  • #193
Evgeny.Makarov said:
Guys, let's try to keep this thread clean. I am afraid to ask about the meaning of the last joke.
Well, I was trying to look up Leslie Nielson's (clean) version of "Man from Nantucket. (The second line is "Who fished for fish in a bucket" but I have no idea about the rest.)

But I did find this for our fine Helper Evgeny.Makarov:

There was a modder on a forum
Always trying to keep the decorum
The hamster wheel threads
Fair spun his poor head
And sent him off to the sanitorium

(Like we need any censuring. All of us are the epitome of cleanliness! (Giggle) )

-Dan
 
  • #194
Did you ever stop to think and then forget to start again?
 
  • #195
Q: Why did the chicken cross the road?
A: It had to due to the intermediate value theorem.

Q: What happens if you get frightened half to death two times in a row?
A: You'll be 3/4 dead.

If there are square matrices, there must also be round ones.

Notice: Mathematician helps get rid of linear, exponential and logarithmic dependence.
Free, permanent, anonymous. Tel: +2,7182818284.
 
  • #196
Evgeny.Makarov said:
Q: Why did the chicken cross the road?
A: It had to due to the intermediate value theorem.
NO. It was because the light changed to "WALK"!
 
  • #197
We're all here because we're not all there!
 
  • #198
Honey, $$\forall N>0\;\exists\delta>0\;|i-u|<\delta\implies\heartsuit(i)>N$$. Will you marry me?
 
  • #199
Evgeny.Makarov said:
Honey, $$\forall N>0\;\exists\delta>0\;|i-u|<\delta\implies\heartsuit(i)>N$$. Will you marry me?
No, our relationship isn't going anywhere. I have to leave you, my love. Just let me go so I can have some [math]\partial S \cup S[/math].

-Dan
 
  • #200
STOP THAT COUGHIN'
=================
Mr. Cohen duly signed an affidavit stating that this story is true. The
number of that affidavit is 89-127. It is available for your perusal at
city hall, records department, legal documents division, affidavits
section. It is the 127th affidavit in an aluminum drawer labelled "89".

Searches for affidavits in aluminum drawers are simplified thanks to
labelled dividers inserted after every 100th affidavit. Mr. Cohen's
affidavit you will find in the section following the divider labelled
"100 to 199".

An affidavit is a sworn statement in writing. And made under oath before
an authorized magistrate or justice of the peace. It is meant to be
understood by lawyers only. It contains intelligent stuff like "In
Witness Thereof" or "The Aforementioned".

If you sign a "sworn" affidavit, you have to put your right hand on top
of the Bible and act serious, dignified and honest.

Perry Mason always seemed to need half a dozen or so affidavits, along
with the odd "Habeas Corpus". He would often hit a button connecting him
to his secretary, Della Street, and yell at her something like "hey Della,
get that guy to sign a sworn affidavit", or "hey Della, get the judge to
issue an Habeas Corpus".

You knew it was Perry Mason because there was a name-plate on the lawyer's
desk. It said: Perry Mason, Attorney-At-Law.

I will now witness thereof that the aforementioned Mr. Cohen is the owner
of Cohen's drugstore. The town in which this story takes place contains a
steep hill, on Main street. Mr. Cohen's drugstore is also situated on Main
street, and is half-way down the steep hill. It is very easy to tell it is
Mr. Cohen's drugstore because there's a sign above the entrance that says:
Cohen's Drugstore.

James F. Grant's funeral service is being held in a church situated on top
of the steep hill. It is named "The Church of the Seventy-Second Parable".
The distinguished Reverend is complimenting James with the proper words,
while Mrs. Grant dabs appropriately at her eyes, with absorbing tissue
from a packet in her purse. It is a pink economy size packet of Kleenex.

Examples of proper words by distinguished Reverends at funeral services are
"he was a pillar of the community" and "he will surely encounter eternal
happiness in the life beyond". Such proper words by distinguished Reverends
strategically terminate with "and he will always be remembered for his
utmost generosity". At this point, distinguished church regulars wearing
white gloves come out carrying special baskets to collect one's donation.
The size of the smile one gets is proportionally related to the size of
one's donation.

Mr. Cohen is not attending James' funeral. As you will see shortly, this
story requires that Mr. Cohen be in his drugstore. Mr. Cohen is presently
standing behind his counter, ticking off a delivery slip for Buckley's
cough syrup, and massaging his left arm. Mr. Cohen opened for business a
few minutes ago, when he hung up a special sign. The sign says: come in,
we're open.

Mr. Cohen's left arm is very tired. This is because Mrs. Cohen weighs
over 300 pounds and goes to bed an hour before Mr. Cohen, coming to rest
on the right side of the bed. Mrs. Cohen's weight causes the left side of
the mattress to rise 22 inches. Unfortunately for poor Mr. Cohen, this
results in the sleeping surface ending up at a 34 degree slope.

When Mr. Cohen arrives an hour later, he carefully lies down on his
stomach and hooks his left arm around the risen left side of the mattress.
Mr. Cohen does this in order not to roll due to the 34 degree incline,
and end up disturbing Mrs. Cohen. When jolted during her sleep, Mrs. Cohen
reacts with a rapid roll to the left which would spell disaster on poor
Mr. Cohen. Next, to offset high frequencies originating from Mrs. Cohen's
nostrils, Mr. Cohen, using his right hand, slips on his ear phones and,
hanging on tight, prays for sleep.

James' funeral service is now over. His coffin is now being rolled out
using a special coffin carrier on little wheels. At this point, please be
advised that coming up next is the conclusion of this story and that events
will from now on unfold rapidly.

I am now "setting the stage". This will consist of a reminder that events
and situations as they now exist are overly important, as without these I
could not properly terminate this story. These are:
1- the coffin is on a carrier on top of a steep hill
2- the drugstore is half-way down the steep hill
3- Mr. Cohen is standing behind his counter
4- added information: Mr. Cohen left the front door open
5- and coming up: an unexpected very strong gust of wind

The coffin is now rolled out to the middle of Main street. Then it is left
temporarily unattended, as the hearse is pulling up. And at this precise
moment, the unexpected very strong gust of wind occurs. It is much stronger
than the coffin carrier. The carrier tips over. The coffin falls off. The
coffin lands such that it starts rolling down the steep hill.

Many ladies gasp many "ah's". The distinguished Reverend utters "my gosh".
Mrs. Cohen cries out "James! James!". Mrs. Logan comes over to comfort her;
she says "now, now, it's ok Mabel: at least he won't hurt himself".

The coffin is rolling right down the middle of Main street, and gathering
speed. About a quarter of the way down, it begins to veer left. Half-way
down it hits a fire hydrant, right in front of Mr. Cohen's drugstore.

The impact causes the coffin to spring open, James flies out, then the
coffin bounces back to the middle of Main street, next bangs itself shut
on the first half-roll, and keeps rolling down the steep hill. Remember:
the coffin keeps rolling down the steep hill.

James' ejection from the coffin is at the required velocity and direction
to permit the following series of events:
1- James tumbling ahead in the direction of Mr. Cohen's drugstore
2- then tumbling through the open front door
3- and tumbling inside the drugstore in the direction of Mr. Cohen
4- barely missing bottles of Buckley's cough syrup piled up in a pyramid
5- ending up with a final tumble in such a way that James was on his feet
6- and leaning against Mr. Cohen's counter

Mr. Cohen, leaning on his right elbow, looks up from the delivery slip of
Buckley's cough syrup and asks: what can I do for you?

James answers: I need something to stop my coffin...

Wilmer.
 
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