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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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#201 Re: Exercises » What do you think? » 2013-10-08 06:31:10

Hello:

Using the principle of inclusion exclusion. smile

#203 Re: Exercises » Probability problem. » 2013-09-25 06:28:13

Hello gAr;

That is good but it can also be derived from the principle of inclusion and exclusion.

#204 Re: Exercises » Probability problem. » 2013-09-25 05:56:09

Oooh yes, I am sorry. It didn't work for me at first. The integral comes from complex analysis? From getting a0 of the Laurent series?

#205 Re: Exercises » Probability problem. » 2013-09-25 05:29:04

I have that one. smile

How do you get the integral to say a hundred digits?

#206 Re: Exercises » Probability problem. » 2013-09-25 05:24:30

What are the Lando lectures?

#207 Re: Exercises » Probability problem. » 2013-09-25 05:16:22

Hello m:

I could use a bit of help on some M code. smile

Why do you call it Spasmatica?

Where does the integral come from? How can I evaluate it to many digits?

#208 Re: Exercises » Probability problem. » 2013-09-23 03:11:29

Hello:

How many Lucky Numbers are there and show 3 ways to find them? smile

#209 Re: Introductions » Hi to everyone » 2013-09-23 02:54:00

My brother and EVW are crazier than I.

I told that to your brother and he agrees with me. No one anywhere is crazier than you. But we all keep trying smile

#210 Re: Help Me ! » An interesting question just entered my mind. Can you answer it? » 2013-09-21 05:06:23

Later I need help on the solution to a problem that they were working on last night and I don't agree that their answer is right.

#212 Re: Help Me ! » An interesting question just entered my mind. Can you answer it? » 2013-09-21 04:45:30

I see that now. So wonderful how they figured it out.

Is there a notebook?

#214 Re: Introductions » Hi to everyone » 2013-09-21 04:25:00

I have never encountered any person or creature that was crazier than I.

Nothing truer could ever be said than that smile

Hi, bobbym.

#215 Re: Help Me ! » Probability! » 2013-09-06 22:10:28

Hello;

Probability[x < 3, 
 x \[Distributed] HypergeometricDistribution[4, 3, 8]]

#216 Re: Dark Discussions at Cafe Infinity » 12 year-old genius » 2013-09-05 20:05:59

What a charming little tyke. Isn't he adorable? smile

I noticed his IQ was higher than yours m.

I sure wished they had let him go on trying to prove that sum is convergent sad

#218 Re: Computer Math » Probability question. » 2013-09-01 23:51:18

This could be solved by using the built in functions that Mathematica supplies.

#219 Re: Computer Math » Probability question. » 2013-09-01 23:47:43

The dist function can be improved. We can leave out the radical for faster execution.
It might be compilable. I see why you stuck with the midpoint idea for both.

#220 Re: Computer Math » Probability question. » 2013-09-01 23:30:34

Working with it a tiny bit you do not need the midpoint idea at all. There is an IntersectRegion command that might work better.:)

#221 Re: Computer Math » Probability question. » 2013-09-01 16:17:14

Hello M:

Thanks for all the work. Why did you choose polar coordinates and not vectors or the Sector command for the sectors? Can you post the Mathematica code when you get a chance?

#224 Re: Computer Math » Geogebra and an inscribed circle. » 2013-08-11 01:19:35

Bobbym:

Can you show how?

I am a little confused on the new methods of verifying the correctness of answers obtained through empirical means such as these. JB and PB were over here giving a lecture that I attended and I am afraid most of it was over my head. EA also explained it but I did not get it. Can you give your explanation. See you later smile

#225 Re: Computer Math » Geogebra and an inscribed circle. » 2013-08-11 01:10:20

I tried it and it worked. I am just learning the program.

That is to 8 digits of precision. The amount the program allows in the increment box. Is there a way to get an answer that is even better?

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