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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#4 Re: Ganesh's Puzzles » Doc, Doc! » 2017-09-20 22:55:12

Hi, Ganesh;

p.s. Recently, I replied to your e-mail. It was in my old inbox.

#8 Re: Guestbook » Fake Doors » 2017-07-19 01:44:52

Agnishom wrote:

Are you bored of real doors? Just having to open and walk through them all the time?

I'm waiting for the time when I can walk through walls.

#9 Re: Maths Is Fun - Suggestions and Comments » What is "moderated by" » 2017-06-11 04:09:49

iamaditya wrote:

Under a section in this forum such as Help Me, Members only, Exercises and so on, you see under that written as "moderated by ---" . Such as In Help me, you will see, moderated by Ricky, bob bundy, ganesh, mathsyperson. May I know what is that?

Different moderators and administrators are assigned to moderate threads within a specific section.

#10 Re: Introductions » hello i am a new member , but i want to change my username . » 2017-06-08 15:57:48

tonyjaa wrote:

is it possible to change my username to something more appropriate for my math studies ?

Unfortunately, no. bobbym, used to do that. But he's not with us anymore.

#11 Re: Help Me ! » International Kangroo Competition Revised » 2016-12-25 21:57:56

Zeeshan 01 wrote:

Please give all answers

Can't see the questions clearly.

An advise:
Math isn't about the answer, it is about how you get to the answer (many ways).
For competitions like Kangaroo Math, you are not allowed to use calculators, think out of the box.

#12 Re: Introductions » Hello. » 2016-12-19 20:12:14

iamaditya wrote:

Hi. My name is Aditya. I am a 13-year old boy studying currently in class 8. I am just mad about maths and love it very much.

And yeah can anyone tell me the difference between member, real member, guest, moderator and administrator in this forum.

Hi;

I started here when I was about 13ish.

Welcome to the Forum!

#13 Re: Help Me ! » Knights and knaves » 2016-12-08 23:45:50

thickhead wrote:

What I would suggest is ask David's question to one person.You would come to know whether he is knight or knave. then you ask him to list who are the knights.Two questions are enough.

Wow. Nice

#14 Re: Help Me ! » Knights and knaves » 2016-12-07 22:58:58

thickhead wrote:

Can you ask the same person more than once?

Exactly, I was thinking about that.

#15 Re: Help Me ! » Knights and knaves » 2016-12-07 21:30:02

thickhead wrote:
David wrote:

The minimum number of yes-no questions that he must ask the inhabitants is 9. (5-yes 4-no/ 5-no 4-yes) At 9, there's enough information to find out the 5 naves.

To be precise,
The minimumof minimum number of yes-no questions that he must ask the inhabitants is 5.
The maximumof minimum number of yes-no questions that he must ask the inhabitants is 9.

But the question doesn't specify.

#16 Re: Help Me ! » Knights and knaves » 2016-12-07 12:48:30

samuel.bradley.99 wrote:

On a fictional island there are 10 inhabitants, who all know each other, of which 5 are knights, who always tell the truth and the rest of them are knaves, who always lie.
A visitor to the island wants to determine the 5 knaves. What is the minimum number of yes-no questions he must ask the inhabitants in order to find the 5 knaves?

Knights always tell the truth, knaves always lie. Ask them a fact question. => Do you live on an Island?

Knights will always tell the truth, hence, they will all say yes.
Knaves always lie, hence, they will all say no.

The minimum number of yes-no questions that he must ask the inhabitants is 9. (5-yes 4-no/ 5-no 4-yes) At 9, there's enough information to find out the 5 naves.

#17 Re: Help Me ! » I have an algebra project that could fail me :( » 2016-12-01 14:41:20

Todd23 wrote:

So
I have a project for my algebra 2 class and I do not know how to do it. It is make a "quadratics for dummies" article. You see I am the "dummy" in this scenario and how is the "dummy" supposed to make a article for the "dummy"? Its all rather demeaning you know. Anyways the specifics of the project are that
A. I have to create an article simplifying the directions for analyzing and solving quadratic functions taking into account complex numbers.
B. Formulate a theory for predicting when each of the described methods should be used for each particular function (I think the three ways are completing the square, factoring, and using the quadratic formula).
C. Create a graphic organizer such as a flow chart or a flow map to show your recommendations.


If anyone could help me with this I would be ecstatic. Really!
Any help would be appreciated.

Hello Todd,

I'll advise you to first sign up for an account here, as guest can't reply to threads.

Can you give us the specific tasks that you need to do?

#18 Re: Help Me ! » Help Password(Access to email lost) » 2016-11-02 20:18:05

bobbym wrote:

I did not want those over there seeing it.

smart move.

#19 Re: Help Me ! » Help Password(Access to email lost) » 2016-11-01 23:47:23

bobbym wrote:

A*rt of Pr--oblem So..lving

I like how you censored A*rt of Pro--blem So..lving

#20 Re: Help Me ! » Help Password(Access to email lost) » 2016-10-30 23:50:46

zetafunc wrote:

But it seems that, for the members and moderators of this forum, they have mostly moved on with their lives, rather than migrating to AOPs, SE, MO, etc.

Some might have moved on to afterlife... oops...

#21 Re: Dark Discussions at Cafe Infinity » Bible Study » 2016-10-29 20:23:54

bobbym wrote:

I think my interpretation I already gave to Agnishom but now I can not find it.

My interpretation is in this video: https://www.youtube.com/watch?v=M76LuF8icDE

#22 Re: Dark Discussions at Cafe Infinity » Bible Study » 2016-10-29 05:12:45

If Jesus is God, why did He pray to Himself?

#24 Re: Introductions » I'm back... for the nth time. » 2016-10-22 20:45:41

mathaholic wrote:

So guys, let me get this straight.

I'm trying to be active in this forum as much as possible, but schoolwork seems to prevent this.

It's now our break, so I have LOTS of time to see how the forum's been doing while I was away.

So yeah, hello! big_smile

Hello!! I have 2 weeks left for my final exam. Then I'm free! Yay! Welcome back!

#25 Re: Introductions » Hii!!!! » 2016-09-16 00:06:40

Zeeshan 01 wrote:

Thank you all !!!!! smile

Are you from Sri Lanka? Your name sounds familiar.

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