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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#55876 Re: This is Cool » Interesting groups » 2009-05-16 07:35:37

Yes, what did you use to make it?

#55877 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-16 03:40:31

I used to be royalty then I was desired

#55878 Re: Dark Discussions at Cafe Infinity » In response... » 2009-05-15 20:33:57

Hi Lorraine;

   It is the study of legendary creatures (creatures that modern science won't admit exist). Might even be considered part of the so called lunatic fringe. It's fascinating though.

#55879 Re: Coder's Corner » Naming Conventions » 2009-05-15 20:28:46

It is ugly. I wouldn't use m_Data,  a week later I wouldn't remember what it meant. Unless my proggie is heavily commented, I have no chance of understanding it later.

#55880 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-15 20:09:42

I used to be a poor fisherman because I was so unschooled.

#55882 Re: Jokes » The computer era » 2009-05-15 18:27:42

MENU                was something that made you gain weight
BUS                    was something Ralph Kramden drove.
MONITOR          was a big lizard
CRACKER          was something you spread cheese on
HACKER             was someone chasing you with a machete
BROWSER         was someone who was just looking
BUG                    was something you squished
CLOCK SPEED  was the same for everyone
MOZILLA             something that fought Godzilla?

#55883 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-15 18:21:00

I used to be an outdooorsman until I was denatured.

#55884 Re: Help Me ! » Pattern Problem » 2009-05-15 13:22:16

HI Aquafina;

  I'm still working on getting the number, let alone the proof.

#55885 Re: Coder's Corner » Best Language to Learn? » 2009-05-15 13:20:00

Sorry LorraineBR, you know how I feel about linear algebra. The last person I did that for is still looking for me and not to thank me.

#55886 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-15 12:54:01

JaneFairfax wrote:

No, you are not cynical. I sometimes don’t think carefully about what I post. sad

I don't agree. I don't want to curtail you or anyone else from speaking plainly at me. It appears I still have some soft tissue that needs hardening. Will control my reflex emotions and give the benefit of the doubt in the future.

I used to be a bad-guy until I was deloused.

#55887 Re: Help Me ! » Pattern Problem » 2009-05-15 04:02:57

Hi Aquafina;
 
  For # 7, Stan Wagon's problems are not easy and in addition this is an olympiad problem, they are also very hard. Have you tried googling for olympiad problems?

#55888 Re: Coder's Corner » Best Language to Learn? » 2009-05-15 03:35:03

Hi LorraineBR;

I was always partial to C++ because of the pointers. I prefer Borland to Microsoft. Good luck with your exam.

#55889 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-15 03:30:56

JaneFairfax wrote:

I think you are overreacting. I only said that I did not google; I didn’t say whether you yourself did or didn’t. I’m sorry you misinterpreted my point. In any case, I shouldn’t really have posted all that. It was most careless of me not to realize that I might unintentionally upset you. I take it all back.

I didn't expect that. Shows how cynical I am. It takes a big person to write it, bigger than me.

I used to own an auto dealership until I was incarcerated.

#55890 Re: Jokes » The computer era » 2009-05-14 20:50:13

RAM                                 was something you did to the other guys boat
BOOT                               was a shoe or a kick
MEGABYTES                   was what happened when you fell into a lake full of piranhas
(thanks for the spelling quittyqat)

STACK                               was something that emitted smoke
NAMESPACE                     was that area at the bottom of your IRS form
GARBAGE COLLECTION  was something that happened on Tuesday and Thursday
TOWER                              was a place you kept people who disagreed with you

#55891 Re: Exercises » Quittyqat's Exercises » 2009-05-14 17:29:00

Yea, but what if it takes me years.

#55894 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-14 03:11:12

I used to be a archaeologist until my theories were des troy ed.

#55895 Re: Help Me ! » Division Method: Reciprocal Multiplication » 2009-05-13 19:09:06

Hi feiutm9898;

  Thanks for providing me with that. Cool, an implementation in assembly,

#55896 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-13 18:59:11

MathsisFun wrote:

And just what would that light be?

Light really doesn't suit me, I prefer fat-free.

I used to be a loan officer than I was discredited.

#55897 Re: Help Me ! » Division Method: Reciprocal Multiplication » 2009-05-13 17:56:01

Hi feiutm9898;

  I might be able to recreate my rather naive method but this page contains everything I know about it plus a lot more.

http://en.wikipedia.org/wiki/Division_(digital)

Half way down the page you will see how newtons iteration creates a recurrence with quadratic convergence (fancy term - means roughly doubling the number of correct digits per iteration). They may have solved my problem of getting a good initial guess ( If I remember I would use the software divide instruction that  C++ provides to prime the recurrence). Newtons method is sensitive to the initial guess so you want to get close. Let me know how much of this you can use.

#55898 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-13 17:38:50

Gee Daniel, what about mine! Just because Jane is cuter than I am, in the right light I am cute too.

My family wanted me to be a banker but I was disinterested.

#55899 Re: Help Me ! » what means "binding in equilibrium" ? » 2009-05-13 17:30:49

Hi schreiber;

1)  The slack variables are variables that are added to constraints to turn inequalities into equations. For instance If z > x+y then I can say z = x+y+c where c is some unknown constant. c is a slack variable. I don't understand the binding in equilibrium in any sense, I suspect it is particular to their problem.

2)  Unfortunately I am unable to follow the reasoning for ( 2,5,3,4). That is all I can say concerning this problem, I am sorry I could not be of more help,

#55900 Re: Help Me ! » what means "binding in equilibrium" ? » 2009-05-13 11:18:13

Hi schreiber;

  Yes, it a optimization problem where as near as I can tell they are maximizing p usually means profit, the others are slack variables. The rest I can not understand, something about a provider they are using.

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