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#1 Re: This is Cool » Great Math Mystery? » 2016-10-30 07:07:07

Did it change your mind about formalism?

#3 Re: This is Cool » Great Math Mystery? » 2016-10-30 06:49:35

Hello:

I finished the video too. Did you see SW close to the end? What did you make of that? smile

#4 Re: Help Me ! » solve » 2016-10-25 23:15:16

When you're trying to do numerics you should check your work. You're not doing that. Please plug in those answers to check.

#5 Re: Help Me ! » [ASK] Probabilities » 2016-10-18 06:26:08

You do eat tuna don't you?

There has been much discussion about that particular point. I do not believe it is posted anywhere in the rules clearly. I would suggest not giving the full answer away but rather try to get the OP do it for himself. Help him along with hints and suggestions or show him a bit of math that can get the answer.

Is that an answer?

#6 Re: Help Me ! » surds » 2016-10-18 06:07:41

Hello:

Since everyone else just gives the answer. I'll try it.

[hidden text by admin.]

#7 Re: Help Me ! » [ASK] Probabilities » 2016-10-18 06:05:40

Hello thickhead:

Too much notation for such a simple problem don't ya think? I thought there was a rule against just giving away the answer like that? sad

Give a guy a couple of fish and he's bloated for a day. Teach him how to fish and he can open a good seafood restaurant that bobbym can eat at. smile

#8 Re: Computer Math » Improving on the Leibniz rule. » 2016-10-11 12:42:23

Hello Bobby:

Did you really really really need MMA to solve

? smile

#9 Re: Exercises » Bitter areas. » 2016-10-11 12:39:46

Hello:

How about too easy. That will take care of tary-try-tree-tri-trey. smile

#10 Re: Exercises » Bitter areas. » 2016-10-09 21:16:44

How do you say it, yall gots to come up with something a bit harder aye bumpkin.

#11 Re: Exercises » Bitter areas. » 2016-10-09 21:07:39

Hello:

Quite elementary. smile

#12 Re: Help Me ! » Help » 2016-09-30 20:19:16

Hello:

Where is the spiel? smile

#13 Re: Help Me ! » Solving a Diophantine Equation » 2016-09-30 00:59:41

The old man in the forum wrote:

I suppose that code up there yields {}?

You know it!

#14 Re: Help Me ! » Solving a Diophantine Equation » 2016-09-30 00:54:44

smile You should like it, it's yours! sad

I'm hungry. sad

#15 Re: Help Me ! » Solving a Diophantine Equation » 2016-09-30 00:48:49

Hello:

Have you tested that?
Does it get all the solutions?

You are doing what he did. You know the answer before you asked the questions.

The first thing I ever taught you was to never ask a question you didn't already have the answer to. - The Verdict

The verification you showed me 2 hours ago:

b=0;FindInstance[{81a^4-420a^3*b+216a^3*c+882a^2*b^2-756a^2*b*c+216a^2*c^2-732a*b^3+1260a*b^2*c-252a*b*c^2+96a*c^3+271b^4-404b^3+546b^2*c^2+196b*c^3+16c^4-1==0,c!=(-1-3a)/2,c!=(1-3a)/2},{a,c},Integers]

#16 Re: Exercises » Number Theory Challenges, #1 » 2016-08-27 04:12:57

Mathegocart wrote:

You know who he is in real life??

Yes smile

#18 Re: Help Me ! » Geometric Series » 2016-08-19 05:30:13

That is not factual.

I didn't say that the right answer wasn't posted. I said the correct solution hadn't been posted yet.

The solution you propose is longer and requires more work.

This solution uses the defining properties of both  ellipse and hyperbola. smile This is shorter.

It can be shortened more because you don't even need to know

. He could've got that with EM. It is obvious that solving 2 linear equations is terse and therefore best.

#19 Re: Help Me ! » Geometric Series » 2016-08-19 04:23:14

Next time just email me before you attempt to solve a problem that is a bit too tough for ya. I'll be glad to assist an old guy. smile

#20 Re: Help Me ! » Geometric Series » 2016-08-19 03:59:20

Hello:

@bobbym, it is amazing that you didn't get the right answer for 8.  Your diagram shows you were working on the wrong hyperbola!

The red one is the right hypie. smile

x0HMcAJ.png

The correct solution is not yet given so I'll put it down.

This solution uses the defining properties of both  ellipse and hyperbola. smile

#21 Re: Help Me ! » Geometric Series » 2016-08-16 17:23:09

Hello thickhead:

That's wrong too. All the terms are integers so you can't get an irrational answer.

Mistake is when you did

1000*1001/2-1023=49977

your calculation got all squished together sad

1000 * 100 (1/2) -1023 = 49977

the right way smile

(1000 * 1001) / 2 - 1023 = 499,477

#22 Re: Help Me ! » Geometric Series » 2016-08-16 16:53:57

Hello thickhead:

thickhead wrote:

therefore required sum is 1000*1001/2-1023=49977

That's how we solved that but you've got to calculate as accurate as you think. That answer (49977) just can't be right.

#23 Re: Help Me ! » Geometric Series » 2016-08-16 16:46:05

I wasn't able to find more than one ordered pair for number 6, x = -1 and  y = 0. What did you find smile ?

#24 Re: Help Me ! » Geometric Series » 2016-08-16 16:39:36

Bobby wrote:

If you can compute it, then you understand it. Can you compute it?

Table[FromContinuedFraction[ContinuedFraction[0.008012018027, k]], {k,2, 6}]

{1/124,1/125,5/624,11/1373,16/1997}

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