"Discover Cooking, Discuss Life."

Go Back   Discuss Cooking - Cooking Forums > The Back Porch > Jokes and Games
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 08-01-2005, 07:45 PM   #1
Executive Chef
 
AllenOK's Avatar
 
Join Date: Aug 2004
Location: USA, Oklahoma
Posts: 3,463
Another Math Trick

This will sound complicated, as I'm going to give it as a formula, but then I'll explain it so it's easier to understand.

For any number (Y), Y x Y will always be 1 greater than the product of (Y - 1) x (Y +1).

Basically, that means that for any number (say, 4), when you square that number (4 x 4 = 16), it will always be 1 more than when you multiply the numbers just before and just after (3 x 5 = 15). This works for EVERY number.

__________________
Peace, Love, and Vegetable Rights!
Eat Meat and Save the Plants!
AllenOK is offline   Reply With Quote
Old 08-01-2005, 07:48 PM   #2
Chef Extraordinaire
 
pdswife's Avatar
 
Join Date: Nov 2004
Location: Mazatlan
Posts: 20,334
Send a message via AIM to pdswife Send a message via MSN to pdswife Send a message via Yahoo to pdswife
Quote:
Originally Posted by AllenMI
This will sound complicated, as I'm going to give it as a formula, but then I'll explain it so it's easier to understand.

For any number (Y), Y x Y will always be 1 greater than the product of (Y - 1) x (Y +1).

Basically, that means that for any number (say, 4), when you square that number (4 x 4 = 16), it will always be 1 more than when you multiply the numbers just before and just after (3 x 5 = 15). This works for EVERY number.
I flunked math.... but I made this work out!! Yippppeeee!! Maybe, I'm getting smarter!
__________________
Love the life you live!
pdswife is offline   Reply With Quote
Old 08-02-2005, 01:41 AM   #3
Traveling Welcome Wagon
 
Join Date: Apr 2004
Location: Somewhere, US
Posts: 15,716
We start school in a week. Keep 'em coming!
Barbara L is offline   Reply With Quote
Old 08-02-2005, 07:24 AM   #4
Master Chef
 
crewsk's Avatar
 
Join Date: Aug 2004
Location: Columbia, SouthCarolina
Posts: 9,368
Send a message via MSN to crewsk
In a week? I think I'd go crazy! TC & Savannah start this Thursday & they have registration today. I can't wait!! It is sort of bitter sweet though, it means my baby girl is growing up on me.
__________________
"Treat everyone with politeness,even those who are rude to you - not because they are nice, but because you are."
crewsk is offline   Reply With Quote
Old 08-02-2005, 12:26 PM   #5
Chef Extraordinaire
 
pdswife's Avatar
 
Join Date: Nov 2004
Location: Mazatlan
Posts: 20,334
Send a message via AIM to pdswife Send a message via MSN to pdswife Send a message via Yahoo to pdswife
Quote:
Originally Posted by crewsk
In a week? I think I'd go crazy! TC & Savannah start this Thursday & they have registration today. I can't wait!! It is sort of bitter sweet though, it means my baby girl is growing up on me.
Boy, you guys start early!

What a waste of all the summer months.
__________________
Love the life you live!
pdswife is offline   Reply With Quote
Old 08-02-2005, 02:14 PM   #6
Master Chef
 
crewsk's Avatar
 
Join Date: Aug 2004
Location: Columbia, SouthCarolina
Posts: 9,368
Send a message via MSN to crewsk
They got out in early May but it does seem like the summer just got started.
__________________
"Treat everyone with politeness,even those who are rude to you - not because they are nice, but because you are."
crewsk is offline   Reply With Quote
Old 08-02-2005, 07:47 PM   #7
Chef Extraordinaire
 
middie's Avatar
 
Join Date: Aug 2004
Location: Cleveland,Ohio USA
Posts: 16,263
Send a message via Yahoo to middie
oh man what is it with you people and math ?? don't you know math and i are enemies ? lol
middie is offline   Reply With Quote
Old 08-03-2005, 01:57 AM   #8
Traveling Welcome Wagon
 
Join Date: Apr 2004
Location: Somewhere, US
Posts: 15,716
Crewsk,

We got out at the end of May, then I taught summer school during June, so I just had July off. I know people out in the "real world" are thinking that is a lot, but believe me, teachers need that time! Plus it isn't all spent loafing. A lot of it is taken up with lesson plans and getting the room ready for the next class. Not to mention the classes I am taking now to get my Master's Degree. I want more time off!!!!!!!!

Barbara
Barbara L is offline   Reply With Quote
Old 08-03-2005, 05:25 AM   #9
Senior Cook
 
msalper's Avatar
 
Join Date: Jun 2005
Location: Izmir / Turkey
Posts: 253
Send a message via MSN to msalper
I remember it from high school:

X2 - Y2 = (X+Y).( X-Y)
X2 - Y2 = X2 +XY- XY-Y2

If you put 1 for Y
Then X2 -1 = (X+1)(X-1)

It is the same one: X.X = (X+1).(X-1) +1

If Y = 2
Then X2 - 4 = (X+2)(X-2)

So we can say that
For any number (Y), Y x Y will always be 4 greater than the product of (Y - 2) x (Y +2).

Basically, that means that for any number (say, 4), when you square that number (4 x 4 = 16), it will always be 4 more than when you multiply the numbers just before and just after (6 x 2 = 12).


Woooowwww

Note: X2 means square

__________________
"Don't let the chain of love end with you......Alper"
msalper is offline   Reply With Quote
Old 08-03-2005, 09:25 AM   #10
Senior Cook
 
CookinBlondie's Avatar
 
Join Date: Aug 2004
Location: Bevier, Missouri, USA
Posts: 386
Send a message via AIM to CookinBlondie Send a message via MSN to CookinBlondie Send a message via Yahoo to CookinBlondie
AllenMI, I am SOOO glad you posted this little math trick. I LOVE math! In fact, after I go to college (hopefully to Harvard) I want to be an architect, because it incorporates both math and art. I can't wait!

I took Algebra 1 earlier than the rest of the people in my class because I was so advanced and had such a love for it. It's neat to see how numbers work together. Last year, I took Geometry, and it was pretty cool too. To be able to see the numbers and also the shapes coordinate is awesome. This year I get to go back to the algebra part of the math world and be in Algebra 2! I can't wait!
__________________
-Ü-Lauren-Ü-
CookinBlondie is offline   Reply With Quote
Old 08-03-2005, 09:57 AM   #11
Master Chef
 
CharlieD's Avatar
 
Join Date: Oct 2004
Location: USA,Minnesota
Posts: 9,698
Off topic for you Blondie.



Harvard was my older sonís second choice; thank G-d he got into his first choice college. But here is an advice work hard in school, it is the only way. He took all advanced classes, played sports and music, was in the midst of all activities in the school, oh yeah he still managed to give me hard time with drugs, alcohol and most of all with girls, lots of them. How he managed all of this I donít know. So work hard, and please do not give your folks hard time. Not everybody is as gifted (thank G-d for that) as he is, not everybody can handle it. But as Iíve told him many times, Iíll tell you too. School is only few years of your life, if you work hard, do the right thing, get into a good college and get good education, you will be able to play the rest of your life, and thatís much-much longer than few years of school. Good luck.
__________________
You are what you eat.
CharlieD is offline   Reply With Quote
Old 08-03-2005, 10:25 AM   #12
Master Chef
 
crewsk's Avatar
 
Join Date: Aug 2004
Location: Columbia, SouthCarolina
Posts: 9,368
Send a message via MSN to crewsk
Quote:
Originally Posted by Barbara L
Crewsk,

We got out at the end of May, then I taught summer school during June, so I just had July off. I know people out in the "real world" are thinking that is a lot, but believe me, teachers need that time! Plus it isn't all spent loafing. A lot of it is taken up with lesson plans and getting the room ready for the next class. Not to mention the classes I am taking now to get my Master's Degree. I want more time off!!!!!!!!

Barbara

Barbara, I agree that teachers need the summer break as much if not more than the kids do.
__________________
"Treat everyone with politeness,even those who are rude to you - not because they are nice, but because you are."
crewsk is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT -5. The time now is 08:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.