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

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

pi = 3.1415926536

e = 2.7182818284

log e = 0.434294

ln 10 = 2.30259

1 radian = 57.2958 degrees or 57 degrees 17 minutes 45 seconds

log 2 = 0.301029995664

log 3 = 0.47712125471

log 7 = 0.84509804

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.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

**Prefixes**

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.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

As in US and other countries......

and so on.

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.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

**Roman Numbers**

**I = 1II = 2III = 3IV = 4V = 5X = 10L = 50C = 100D = 500M = 1000 **

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

Offline

**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

Offline

**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

**Arcminute (′)**

**Arcsecond (″) **

1 arcsecond = 1/60 arcminute = 1/3600 degrees = 1/216000 of the amount of arc enclosed in a circle.

*Last edited by Daniel123 (2008-04-07 07:45:20)*

Offline

**SvenBee****Member**- Registered: 2008-03-08
- Posts: 106

About that googolplex:

you have

and isn't

just 1?e...the red-headed stepchild of math.

Offline

**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

Should be

.*Last edited by Daniel123 (2008-04-07 07:45:44)*

Offline

**SvenBee****Member**- Registered: 2008-03-08
- Posts: 106

Mmk, gotcha. One more question then. googol is 1 followed by 100 zeros, so shouldn't the formula be

??*Last edited by SvenBee (2008-04-07 08:32:23)*

e...the red-headed stepchild of math.

Offline

**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

1 followed by *n* zeros is

Offline

**SvenBee****Member**- Registered: 2008-03-08
- Posts: 106

so

?e...the red-headed stepchild of math.

Offline

**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

Yes.

Offline

**newmath005****Member**- Registered: 2008-08-19
- Posts: 1

**ganesh**

I found it ! thanks!

google in binary system

1 0010 0100 1001 1010 1101 0010 0101 1001 0100 1100 0011 0111 1100 1110 1011 0000 1011 0010 0111 1000 0100 1100 0100 1100 1110 0000 1011 1111 0011 1000 1010 1100 1110 0100 0000 1000 1110 0010 0001 0001 1010 0111 1100 1010 1010 1011 0010 0100 0011 0000 1000 1010 1000 0010 1110 1000 1111 0001 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000

Offline

**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

Offline

Pages: **1**