Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #1 2007-09-29 15:15:08

MathsIsFun
Registered: 2005-01-21
Posts: 7,608

### Variables with Exponents - How to Multiply and Divide them

This one went through SO MANY drafts ... how does it look to you? Variables with Exponents - How to Multiply and Divide them

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

## #2 2007-09-30 00:54:26

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,760

### Re: Variables with Exponents - How to Multiply and Divide them

The laws of exponents have been neatly presented and the graphics help in understanding the laws better. The following may be considered for inclusion on the page or a separate second page.

(a³)² = a^6

a^½ = √a

a^1/3 = cube root of a etc.

Excellent page, MathsIsFun!!!

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Online

## #3 2007-09-30 09:22:36

MathsIsFun
Registered: 2005-01-21
Posts: 7,608

### Re: Variables with Exponents - How to Multiply and Divide them

Thanks Ganesh, and welcome back ... we have missed you!

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

## #4 2007-10-04 18:33:46

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

### Re: Variables with Exponents - How to Multiply and Divide them

Pretty neat at my kwik glance.
It's just too bad I can't visualize multiplying
in dimensions greater than 3 (up/down, left/right, back/toward).
Because if I could visualize blocks in 4-D like 3*3*3*3,
that would be helpful I think.  I guess you could
visualize 3 cubes beside one another that are 3 by 3 by 3.
I'm rambling.

igloo myrtilles fourmis

Offline

## #5 2007-10-04 18:51:06

MathsIsFun
Registered: 2005-01-21
Posts: 7,608

### Re: Variables with Exponents - How to Multiply and Divide them

How about Density. Pour milk into coffee, and some places willl have 3 times as much milk as others ...

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

## #6 2007-10-05 01:52:37

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

### Re: Variables with Exponents - How to Multiply and Divide them

should you not include something on non-integer exponents, i.e. re-iterate that the addition rule doesn't just apply to integer exponents and cover things like ^0.5 = +/- square root etc or that square root is the principal root of ^0.5, the positive root. things like ^2/3 means, the cubic root, squared. for example 125^(2/3) = 5^2 = 25

Last edited by luca-deltodesco (2007-10-05 01:54:08)

The Beginning Of All Things To End.
The End Of All Things To Come.

Offline

## #7 2007-10-05 10:07:00

MathsIsFun
Registered: 2005-01-21
Posts: 7,608

### Re: Variables with Exponents - How to Multiply and Divide them

Yes, maybe on another page ... what would I call the page?

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

## #8 2007-10-12 13:12:10

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

### Re: Variables with Exponents - How to Multiply and Divide them

Yes, density.  Density is hard to think about spread out over different positions.
I've never considered that before.

igloo myrtilles fourmis

Offline