Math Is Fun Forum

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

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#327 Re: Maths Is Fun - Suggestions and Comments » New Rules » 2014-05-29 02:34:58

chooipian, those are more or less the same, but you have a couple that I forgot so I will add them.

16. We are not here to spoon-feed you. Please, before asking a fairly obvious question, search it on some search engine. It is very likely that you will get an answer much quicker than asking here.

17. Do not spam - reposting questions, posting junk etc all constitute as spam.

18. Make all attempts to ensure that your post is credible and correct. Support all speculative/not obvious information in your post with valid sources (peer reviewed journals or textbooks constitute as valid sources).


I agree that these rules may be stern, but as bobbym said, it depends on how you enforce it. The point of these rules is to prevent any banned member from complaining  that we banned them for something not on the rules. How you enforce them is up to the staff. Some leniency is expected.

#328 Re: Maths Is Fun - Suggestions and Comments » Forum Upgrade 1.5.6 » 2014-05-29 02:27:44

We need more dark backgrounds! I use Cobalt because that's the only one.

#333 Re: Help Me ! » general 4x4 determinant » 2014-05-28 13:37:27

They really are nice lectures. I think they were the ones from which I first learned linear algebra.

#334 Re: Jokes » Funny posts » 2014-05-28 13:07:44

Anthony.R.Brown wrote:

To John E. Franklin

Quote:" If you take an algebra-thin line for the frame and make it thicker by any normal constant not near infinity, but closer to zero, then the frame's hole will be the same as the area of the paper since the frame itself has no area.
Zero width of a frame is just a reference to a rectangle that doesn't have any particles in its makeup.  Waves?  I don't know.  It's just an idea of a rectangular frame, not a real paper one. "

A.R.B

I think Mushrooms would have less of an Effect on your Mind!...

#337 Re: Puzzles and Games » Cube it! » 2014-05-28 12:56:25

bobbym wrote:

Too lazy to write it out in an alternate way? By the way, do you know if there is a name for that?

Looks like a date.

52^3 = 140608

Hmm?

56^3 = 175616

#338 Re: Maths Is Fun - Suggestions and Comments » New Rules » 2014-05-28 12:55:09

Okay. I agree with you on 4, but note that all these rules are not to be enforced word by word. Some leniency is assumed - especially on such a nice forum.

As for 5, I am sure you do not want a user bumping his thread 10 times a day.

As for 14, I just wrote that in case it ever is needed. Such things do happen on forums.

#339 Re: Maths Is Fun - Suggestions and Comments » New Rules » 2014-05-28 12:09:23

I don't need your opinion, you idiot.

That would happen without rule 6.

Right now, bumping is not allowed at all. 24 hours is good.

By rule 14, I mean: solve this and you get $10.

For rule 15, it says for personal gain. If it's a math site or anything, that's not for personal gain.

#340 Re: Maths Is Fun - Suggestions and Comments » New Rules » 2014-05-28 09:35:04

I think they're pretty good but not too strict and fairly obvious.

These are better than the current rules because there is a lot missing from the current ones. This way, not one can come and complain that he got banned for doing something but that wasn't in the rules.

#341 Re: Help Me ! » Taylor series » 2014-05-28 08:36:49

ShivamS wrote:

That does not involve that polynomial?

I am not sure you can't use it to make the problem simpler, but you can solve it without that.

#342 Maths Is Fun - Suggestions and Comments » New Rules » 2014-05-28 08:35:09

ShivamS
Replies: 35

General Guidelines

1. English - Please talk in English most of the time and do not use shorthand or SMS or text message language (such as IMO, "u" for "you", and "plz" for "please" etc)
2. One account per person. If you want to register more than one account (for example, for a sibling) then contact a moderator or administrator.
3. When posting a new topic, please select the forum that best relates to the subject matter of your topic. If you are unsure, contact a moderator or admin.
4. Do not hijack an existing thread with off-topic comments or questions. Start a new thread instead.
5. You can "bump" only if 24 hours have past since the last post.
6. No obscenity, hate speeches, religious screeds, personal attacks, foul or hostile language, profanity, insults, snide remarks or phrases that appear to be an attempt to "put down" another member and other indirect attacks on a member's character or motives.
7. Please treat all members with respect, even if you do not agree with them.
8. Do not overuse the capital letters, bold, oversized, non-standard, or coloured fonts, or any combination thereof.
9. If you are referring to someone in your post, perhaps you should quote their post using the "Quote" button.
10. When you quote from a post, please delete large sections that are not directly relevant to your response, to make reading easier.
11. Images, material or links to images and or material whether real, satirical or implied depicting obscene, indecent, lewd, math, violent, abusive, insulting, or threatening in nature are not permitted.
12. If you find a post containing anything that is in violation of the rules, report it immediately using the "Report" button.
13. Explicit "how to" discussions of illegal and/or dangerous activities, or posts advocating such activities, are prohibited; such as: how to make explosives, manufacture crack, steal software, hack into the CIA etc.
14. Soliciting or offering financial payment for any reason is strictly prohibited.
15. Advertising for personal gain of any kind is not permitted.
16. We are not here to spoon-feed you. Please, before asking a fairly obvious question, search it on some search engine. It is very likely that you will get an answer much quicker than asking here.
17. Do not spam - reposting questions, posting junk etc all constitute as spam.
18. Make all attempts to ensure that your post is credible and correct. Support all speculative/not obvious information in your post with valid sources (peer reviewed journals or textbooks constitute as valid sources).

Homework

1. Post in the "Help me" section.
2. State the problem as it was written exactly.
3. Please show some attempt on the question (say what you tried, even if it was wrong).
4. State your educational background (e.g. high school, university etc) so you do not get too simplified or difficult answers.

#343 Re: Help Me ! » Taylor series » 2014-05-28 08:15:24

bobbym wrote:

One typical use is the problem of the railroad track.

Use of what?

#344 Re: Help Me ! » Taylor series » 2014-05-28 08:05:11

That does not involve that polynomial?

#345 Re: Help Me ! » Taylor series » 2014-05-28 07:48:59

I recall them coming up in a talk with a professor some time back and he mentioned they cover it in some graduate level course. I don't remember the details though.

A very good tutorial for Taylor Series is http://tutorial.math.lamar.edu/Classes/ … eries.aspx
or http://www.sosmath.com/calculus/tayser/ … ser01.html or http://www.math.hmc.edu/calculus/tutorials/taylors_thm/

#346 Re: Help Me ! » Taylor series » 2014-05-28 07:45:19

We don't here about osculating polynomials until graduate courses.

#349 Re: Maths Is Fun - Suggestions and Comments » Please lower the flood limit » 2014-05-28 01:23:52

I think the forum is fine as it is though. Not too many people double/triple post, so it is not a big issue.

#350 Re: Maths Is Fun - Suggestions and Comments » Please lower the flood limit » 2014-05-28 01:20:50

Maybe there is some software for that.

A workaround could be edit notifications, so edited posts count at New posts.

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