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

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#4 Re: Maths Is Fun - Suggestions and Comments » Relativity Introduction » 2018-02-06 12:32:17

Thanks!

The reason for the little story is that most people think "Big Bang" which gives them a false idea of a central expansion point, and I want them to know the Universe is more elegant than that.

Isn't length contraction just a way of handling certain problems and not really a thing?

And how do I work E=mc² into it?

#5 Maths Is Fun - Suggestions and Comments » Relativity Introduction » 2018-02-06 11:30:50

MathsIsFun
Replies: 5

I have drafted an Introduction to Relativity: Relativity

Criticisims, correction, comments all welcome.

I want to get it right before publishing on website!

#7 Re: Maths Is Fun - Suggestions and Comments » Error » 2018-02-03 17:01:36

Yes zetafunc has it right. There are many automated spam attacks constantly going on, and the server has hundreds of rules to spot them. It simply denies. And if it gets several from the same location it will ban.

#9 Re: Maths Is Fun - Suggestions and Comments » Pythagoras' Theorem in 3D » 2018-01-23 15:10:28

Thanks ganesh!

No offence Monox! I am not sure what you mean by equal halves though.

#12 Re: Maths Is Fun - Suggestions and Comments » Banning new members » 2018-01-10 13:19:59

Exactly right.

Spam is an annoyance that we always have to fight.

But we also want to allow well established members to talk about other sites.

Imagine you are in a group of friends and someone just turns up trying to sell you something (versus a friend telling you about things).

#13 Maths Is Fun - Suggestions and Comments » Sampling » 2018-01-10 13:12:53

MathsIsFun
Replies: 3

A new page: Sampling

Comments/suggestions anyone?

#15 Re: Maths Is Fun - Suggestions and Comments » Fourier Series » 2017-12-30 09:52:24

You are welcome Bob

A side note on the grapher: you can sum any function you want, not just sine and cosine.

#17 Maths Is Fun - Suggestions and Comments » Fourier Series » 2017-12-26 12:34:36

MathsIsFun
Replies: 5

Just finished this page: Fourier Series

Please let me know what you think, and if there are any errors at all.

#18 Maths Is Fun - Suggestions and Comments » Correlation Calculator » 2017-12-22 17:22:55

MathsIsFun
Replies: 2

Have a try of the Correlation Calculator and let me know what you think.

Does it work well? Any ideas for improvement?

#20 Maths Is Fun - Suggestions and Comments » Solids of Revolution by Shells » 2017-12-19 12:12:23

MathsIsFun
Replies: 2

A new page:

Solids of Revolution by Shells

Tell me what you think, and any suggestions you may have!

#21 Re: Maths Is Fun - Suggestions and Comments » Unable to access site » 2017-09-21 09:28:00

A screenshot of the error might help us find out what is wrong

#24 Re: Maths Is Fun - Suggestions and Comments » Chess » 2017-07-22 21:54:23

Thanks ganesh and Stephen.

I could introduce a small delay.

Could Medium be a little harder do you think?

I could also have more difficulty levels. Beginner, Medium, Challenging, Hard, Extreme.

#25 Maths Is Fun - Suggestions and Comments » Chess » 2017-07-22 14:29:59

MathsIsFun
Replies: 7

I have a new chess program: Chess

It uses the "Garbochess" engine for the (very strong) computer player, but there is also Easy and Medium settings.

Could you let me know how it works for you and if there are any problems.

Also try to beat it, and let me know if I have Easy, Medium and Hard well chosen.

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