Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2006-12-08 01:20:59
- user1234
- Member
- Registered: 2006-11-21
- Posts: 8
any maths genuises? help plz! simple question.
hi. can someone tell how i could simplify numbers for example like this: 150000 is also 15x10 to the power of 4. how could i do this with this number for example -1999?? how do i find the exponent? i know the mantissa would be something like 1.999. any ideas? thanks for ur help! 
p.s. i need to multiply by 2, because i will be working in binary.
Offline
#2 2006-12-08 08:15:06
- LQ
- Real Member
- Registered: 2006-12-04
- Posts: 1,285
Re: any maths genuises? help plz! simple question.
Good luck. Hope you find your answer in a math book.
I see clearly now, the universe have the black dots, Thus I am on my way of inventing this remedy...
Offline
#3 2006-12-08 08:34:56
- Patrick
- Real Member
- Registered: 2006-02-24
- Posts: 1,005
Re: any maths genuises? help plz! simple question.
I'm not sure what you're looking for but maybe this?
Support MathsIsFun.com by clicking on the banners.
What music do I listen to? Clicky click
Offline
#4 2006-12-08 09:11:03
- Ricky
- Moderator
- Registered: 2005-12-04
- Posts: 3,791
Re: any maths genuises? help plz! simple question.
1999 is prime. Thus, there exists no integer n where n < 1999 such that:
n^m = 1999, for all m in the integers.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
Offline
#5 2006-12-09 02:42:13
- krassi_holmz
- Real Member
- Registered: 2005-12-02
- Posts: 1,905
Re: any maths genuises? help plz! simple question.
-1999=-0.1999*10^4.
If you want:
-1999=-0.1999E4
-1999=-(11111001111) in binary
IPBLE: Increasing Performance By Lowering Expectations.
Offline
#6 2006-12-09 04:02:47
- user1234
- Member
- Registered: 2006-11-21
- Posts: 8
Re: any maths genuises? help plz! simple question.
ok thanks alot guys!! )
Good luck. Hope you find your answer in a math book.
LOL...
Offline
#7 2006-12-09 04:14:37
- krassi_holmz
- Real Member
- Registered: 2005-12-02
- Posts: 1,905
Re: any maths genuises? help plz! simple question.
Some good explanation:
http://en.wikipedia.org/wiki/Scientific_notation
IPBLE: Increasing Performance By Lowering Expectations.
Offline
#8 2006-12-09 11:51:53
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,711
Re: any maths genuises? help plz! simple question.
Or here: Scientific Notation / Standard Form
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
Offline
#9 2006-12-09 20:39:16
- Ricky
- Moderator
- Registered: 2005-12-04
- Posts: 3,791
Re: any maths genuises? help plz! simple question.
Ahhh... makes more sense. 15*10^4, not (10*15)^4. Read the first post incorrectly.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
Offline
Pages: 1