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#1 Re: Help Me ! » Loaded Dice » Today 14:07:41

Yes. But maybe loaded, as in not fair.

In other words, show that

is not a product of
and
where
for all i and

#2 Help Me ! » Loaded Dice » Today 01:55:07

Agnishom
Replies: 3

Show that you cannot have two loaded 6-faced die, such that, when you roll them together all scores from 2 to 12 are equally likely

#3 Re: Help Me ! » Algorithms » Yesterday 04:21:05

Hi there;

Loosely speaking, an algorithm is a step by step recipe of solving a problem.

Algorithms in mathematics are ubiquitous. Can you calculate 123 + 23? Yes, you can do so because you learnt an algorithm to do so in primary school.

Algorithms are a lot of fun. An interesting (and very approachable) book on algorithms is "Algorithms Unlocked" by Thomas Cormen.

#4 Re: Guestbook » bobbym's messageboard » 2017-03-07 04:20:00

The computation.

I'd like to see your program.

#5 Re: Guestbook » bobbym's messageboard » 2017-03-07 03:42:11

That is very good! How much time did it take?

#6 Re: Guestbook » bobbym's messageboard » 2017-02-27 13:50:38

So far so good, but I am only playing around.

Do you like the weekly problems?

#7 Re: Guestbook » bobbym's messageboard » 2017-02-26 15:08:05

Now they do again. You wanted that, didn't you?

#8 Re: Guestbook » bobbym's messageboard » 2017-02-25 17:19:36

Brilliant.Org now has weekly problems

#10 Re: Help Me ! » Knight's Random Walk » 2017-02-19 21:32:53

I know how to solve it for an 8 by 8 board.

#11 Re: Help Me ! » Knight's Random Walk » 2017-02-16 18:55:10

I do not know how one does infinite similations.

In that case, I think the knight case is similar..

#13 Re: Help Me ! » Knight's Random Walk » 2017-02-16 16:22:36

Yes, let's solve a simpler problem first

#14 Re: Help Me ! » Knight's Random Walk » 2017-02-16 15:20:23

I meant, what is the expected time after which you return to the origin in the following random walk?

Start at 0. When in i, with probability 0.5, go to i+1, and with probability 0.5 go to i-1

#15 Re: Help Me ! » Knight's Random Walk » 2017-02-16 02:57:49

I can find this value for a finite n. But I do not think taking limit on n makes sense.

What is the mean time of return to the origin when you do a random walk on the integers?

#16 Help Me ! » Knight's Random Walk » 2017-02-16 01:31:42

Agnishom
Replies: 13

A knight on an unbounded chess board picks one of the possible 8 moves uniformly at random. What is the expected time after which the knight comes back to where it started?

#18 Re: Dark Discussions at Cafe Infinity » Suggest Pronounceable Strings for naming a person » 2017-02-12 21:32:37

No, seriously, my friend asked me to ask bobbym, because bobbym might be able to invent a few good ones.

#19 Re: Dark Discussions at Cafe Infinity » Suggest Pronounceable Strings for naming a person » 2017-02-12 20:15:02

That sounds interesting to me.

Keep going.

Have you heard of Princess Consuela Banana Hammock?

#21 Re: Dark Discussions at Cafe Infinity » Suggest Pronounceable Strings for naming a person » 2017-02-12 14:13:07

But this thread is about getting suggestions, so that he knows what is the best to name himself.

Einar is not an unique name. There are people named Einar. We are looking for unique names, like Agnishom. There was no one called Agnishom before me.

How do you pronounce Einar?

#22 Re: Dark Discussions at Cafe Infinity » Suggest Pronounceable Strings for naming a person » 2017-02-12 05:31:07

He wants to change his name.

Einar sounds like an interesting name. Do you have any more of these? Preferably something original

#24 Dark Discussions at Cafe Infinity » Suggest Pronounceable Strings for naming a person » 2017-02-12 03:56:33

Agnishom
Replies: 15

Hi;

I have a friend who is looking for a new name for himself. He wants it to be an unique name.

Please suggest ideas.

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