todays math fun is brought to you by the letters W T and F

[muchspl2]

1- take the first three numbers of your home phone number (not area code) and multiply by 80
2- add 1
3- multiply by 250
4- add the last four digits of your home number
5- add the last four digits of your home number, again
6- subtract 250
7- divide by 2

[Spicker]

i lost me ti-83+ today... :(

cant do math now :(

[muchspl2]

duh
C:\WINNT\system32\calc.exe
your on a computer, you have a calculator :rolleyes:

[Spicker]

duh
C:\WINNT\system32\calc.exe
your on a computer, you have a calculator :rolleyes:
its to hard to use it...and im too lazy :wacko: :blushing:

[muchspl2]

well if you do it correctly it will = your phone number.

[Spicker]

well if you do it correctly it will = your phone number.
SERIOUS?????? :o

will try it out now...

EDIT: just tried it...its k00l but pointless :|

[TheDave]

83262.5

[muchspl2]

SERIOUS?????? :o

will try it out now...

EDIT: just tried it...its k00l but pointless :|

isn't everything

[TheDave]

i missed half the instructions i think :blink:


meh

[muchspl2]

it works all the time, its a math trick, if it didn't you screwed up the math :(

[brotherdoobie]

Pretty cool...worked for me.

Peace bd

[SingaBoiy]

What if you dont have a 7 digit phone#?

It worked for me too.

[tesco]

wow kool
how does that work?
I want full explanation on my desk(top) by tommorrow at 8am. No extensions. :shifty:

[colt45joe]

i lost me ti-83+ today... :(

cant do math now :(

i have a TI-89.

:p

[manker]

What if you dont have a 7 digit phone#?

It worked for me too.It's easily adaptable. Not that difficult to work out :P

People in the UK have 6 digit phone numbers, instead of multiplying by 80 in the first step. Multiply by 8.

If you have an 8 digit number, multiply by 800.

[Rip The Jacker]

Hey thats neat. It works. :D

[TheDave]

its not working, i'm probably something though. i just noticed it say WTF in the title

[vidcc]

Cool trick to help one remember ones phone number.... perhaps it should be put on the "tips" thread :unsure: :helpsmili

[manker]

its not working, i'm probably something though. i just noticed it say WTF in the titleDid you multiply by 8 (http://filesharingtalk.com/vb3/showpost.php?p=976382&postcount=15) instead of 80?

[muchspl2]

yea, its pretty fun :01:

[TheDave]

Did you multiply by 8 (http://filesharingtalk.com/vb3/showpost.php?p=976382&postcount=15) instead of 80?
yep dont work

[manker]

Do you have a six digit telephone number, if so you're a geptard.

Example 123456

123*8 = 984

984 + 1 = 985

985*250 = 246250

246250 + 456 = 246706

246706 = 345 = 247162

247162 - 250 = 246912

246912\2 = 123456

[Samurai]

It's easily adaptable. Not that difficult to work out :P

People in the UK have 6 digit phone numbers, instead of multiplying by 80 in the first step. Multiply by 8.

If you have an 8 digit number, multiply by 800.

Do they now? I must work for teh government then cause I have 7 digits, minus the area code of course.

By the way, worked for me :01:

[manker]

Do they now? I must work for teh government then cause I have 7 digits, minus the area code of course.

By the way, worked for me :01:Meh, you're from London. There are too many people there for any sense.

Also chavs breed quicker than proper people, London needs the extra 90 million phone numbers, just incase :unsure:

[Jon L. Obscene]

well if you do it correctly it will = your phone number.

Nope, gave me a 0 too many :P

Jonno :cool:

[manker]

It works for everyone!!!111 http://www.sighost.us/members/danb/bbq.gif

[TheDave]

doesnt

[TheDave]

oh it works if i press enter every step

[manker]

Want me to prove it.



Edit: Geptard :P

[muchspl2]

sure

[manker]

sureOK. It can be proved by simplification.

The first step is multiplying by 8 (2X2X2); cancel out step 7 by removing one of the twos.

Step 5 is also cancelled because you've gotten rid of the divisor of two at the end so you must not add the last three digits a second time.

This means that step seven is gone, step 5 is gone and you're multiplying by 4 in the first instance.

We now have

1 Multiply first 3 digits by 4
2 Add 1
3 Multiply by 250
4 Add last three digits
5 Subtract 250

Still works, right?

Steps 2 and 5 cancel themselves out since adding one before multiplying by 250 has the effect of adding 250 to the figure.

We now have

1 Multiply first 3 numbers by 4
2 Multiply by 250
3 Add last 3 digits


Since 4*250= 1000 we may as well simplify further and get rid of step 2 by making step one the first 3 numbers*1000

Now we're left with

1 Multiply the first 3 numbers by 1000
2 Add last 3 digits.

The above is moving the 3 digit number 3 decimal places to the left and slotting in the last 3 digits.

=> It works for everyone.

Note: It's the same principle for 7 digit numbers, it just cancels down to multiplying by 10000 rather than 1000 in it's simplest form.

[muchspl2]

gold star for showing your work, congratulations you screwed up the bell curve and will make every one else have lower grades.

[Cheese]

I don't have a phone. :(

[manker]

I don't have a phone. :(Don't be sad. It still works for you too. With zeros.

[Yogi]

Thanks!!! :crying:

I finally know my number now............... :(

Is there a reverse process, where i forget it again??? :helpsmili

[(>Zero Cool<)]

OK. It can be proved by simplification.

The first step is multiplying by 8 (2X2X2); cancel out step 7 by removing one of the twos.

Step 5 is also cancelled because you've gotten rid of the divisor of two at the end so you must not add the last three digits a second time.

This means that step seven is gone, step 5 is gone and you're multiplying by 4 in the first instance.

We now have

1 Multiply first 3 digits by 4
2 Add 1
3 Multiply by 250
4 Add last three digits
5 Subtract 250

Still works, right?

Steps 2 and 5 cancel themselves out since adding one before multiplying by 250 has the effect of adding 250 to the figure.

We now have

1 Multiply first 3 numbers by 4
2 Multiply by 250
3 Add last 3 digits


Since 4*250= 1000 we may as well simplify further and get rid of step 2 by making step one the first 3 numbers*1000

Now we're left with

1 Multiply the first 3 numbers by 1000
2 Add last 3 digits.

The above is moving the 3 digit number 3 decimal places to the left and slotting in the last 3 digits.

=> It works for everyone.

Note: It's the same principle for 7 digit numbers, it just cancels down to multiplying by 10000 rather than 1000 in it's simplest form.


:huh:

slow day at work was it manker? :rolleyes:

[manker]

:huh:

slow day at work was it manker? :rolleyes:You mean that the world doesn't stop for everyone when a hawt logic problem presents itself! Unbelievable!

[(>Zero Cool<)]

You mean that the world doesn't stop for everyone when a hawt logic problem presents itself! Unbelievable!

:lol: or :crying:

basically I don't know whether to laugh with you or cry for you on that one :ermm:

[Gemby!]

21592 :01: