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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,605

I like the constant 3 + (1/5) much better.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**L'Hopital****Member**- Registered: 2014-03-07
- Posts: 17

Agnishom wrote:

Why is pi day wrong?

it isn't. however, my maths teacher's birthday is on pi day, so i must remove her bragging rights somehow. joking aside, i believe that we should us tau for angles and pi for areas.

*Last edited by L'Hopital (2014-03-20 21:23:06)*

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Is she Einstein?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'Humanity is still kept intact. It remains within.' -Alokananda

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**L'Hopital****Member**- Registered: 2014-03-07
- Posts: 17

Agnishom wrote:

Is she Einstein?

no. far from it...

Churchill (drunk): You're ugly, woman!

Woman (horrified): You're drunk!

Churchill: Yes, but in the morning I shall be sober...

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,605

Is she Bohr?

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,519

Agnishom wrote:

Why is pi day wrong?

Tau is the name given to a constant which is twice pi, I think.

*Last edited by ShivamS (2014-03-21 11:34:54)*

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**eigenguy****Member**- Registered: 2014-03-18
- Posts: 78

(I am amazed that list of useful symbols at the top of the page doesn't include pi!)

tau = 2 pi, the measure of a full circle. There are those who argue that tau would be a better choice than pi, but I haven't found that their arguments hold much water. For every calculation it simplifies, it makes another more complex.

"Having thus refreshed ourselves in the oasis of a proof, we now turn again into the desert of definitions." - Bröcker & Jänich

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**L'Hopital****Member**- Registered: 2014-03-07
- Posts: 17

eigenguy wrote:

(I am amazed that list of useful symbols at the top of the page doesn't include pi!)

tau = 2 pi, the measure of a full circle. There are those who argue that tau would be a better choice than pi, but I haven't found that their arguments hold much water. For every calculation it simplifies, it makes another more complex.

exactly! hence my suggestion of a dual system, or at least using tau for angles.

Churchill (drunk): You're ugly, woman!

Woman (horrified): You're drunk!

Churchill: Yes, but in the morning I shall be sober...

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