Pragabhava

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Pragabhava

Oct 24, 2015 01:05

@JacobAkkerboom Thanks a lot Jacob!

Pragabhava

Oct 23, 2015 18:44

Sorry to bother you again guys. Is there a way to prevent TreeForm from displaying the last element of every branch?

Pragabhava

Oct 23, 2015 17:41

@JacobAkkerboom Trough out the years, I've become a master in providing examples :P

Pragabhava

Oct 23, 2015 17:29

@JacobAkkerboom I know. I guess is the classic XY problem. I have the list {a1,{b1,b2,{c1,c2,c3}}} and I'd like to view it as a tree. I've tried TreeForm but it displays all the headers.

Pragabhava

Oct 23, 2015 17:25

@JacobAkkerboom Thank you!

Pragabhava

Oct 23, 2015 17:10

Hello guys. I have a quick question: if I have a list like {a1,{b1,b2,{c1,c2,c3}}}, how do I convert it to a1[b1,b2[c1,c2,c3]]]?

Pragabhava

Mar 6, 2015 17:54

Hello guys. I have a quick question regarding graphicsgrid. Is there a way to put labels to hole rows?, i.e.
                  label 1
     xxxx   xxxx   xxxx   xxxx
                  label 2
     xxxx   xxxx   xxxx   xxxx

Pragabhava

Nov 27, 2014 14:51

I've found it. CopyToClipboard does the job. Thanks anyway.

Pragabhava

Nov 27, 2014 14:45

Hello guys, I have a quick simple question:

Is there a way to automatically "Copy As -> Plain Text" an output, without the hassle of mouse clicking?

Pragabhava

Jun 26, 2014 00:39

@Szabolcs He. I guess I rely on the built in search too much. Thanks for the help :)

Pragabhava

Jun 26, 2014 00:37

@Szabolcs I did try to find a question. I guess I wasn't using the right keywords.

Pragabhava

Jun 26, 2014 00:23

Hello guys. I have a quick stupid question. Suppose I have an ArrayPlot and I want to show the value of a particular square while hoovering it. I've tried to use Tooltip to no avail.

Pragabhava

May 6, 2014 02:04

Thank you!

Pragabhava

May 6, 2014 02:04

@Rojo It works great :)

Pragabhava

May 6, 2014 01:36

Here's an example:
       data = {{{0, 3.94221, -90.0695}, {1, 6}}, {{0, 12.4063, -97.2276},
           {1, 24}}, {{0, 15.7376, -73.848}, {1, 25}}, {{0, 19.531, -100.596},
           {1,2}}, {{0, 23.252, -86.3221}, {1, 17}}}

Pragabhava

May 6, 2014 01:32

Hello guys, I was wondering if someone could help me with a little problem I'm having: I have a set of data in the form
     data = {{{x1,y1,z1},{idx11,idx12}},{{x2,y2,z2},{idx21,idx22}},{{x3,y3,z3},
          {idx31,idx32}}, ... }
And I need to do a `ListPointPlot3D` of the coordinate points {{x1,y1,z1},{x2,y2,z2},...} with a `Tooltip` that displays {idx11,idx12} etc, when I'm over the respective point. To do so I enter
     `ListPointPlot3D[Tooltip@@@data]`
only to find that although `Tooltip` is working as expected, `ListPointPlot3D` is unable to plot the data. Any suggestions?

Pragabhava

Apr 23, 2014 19:19

@halirutan I'm not allowed to go outside the data set. Think of it as some sort of irregular latice. The actual problem is this

Pragabhava

Apr 23, 2014 19:17

@MichaelHale Thank you very much!

Pragabhava

Apr 23, 2014 19:15

@halirutan Indeed

Pragabhava

Apr 23, 2014 19:14

@halirutan I don't need to visit all the points in the set :)

Pragabhava

Apr 23, 2014 19:12

That's very nice!

Pragabhava

Apr 23, 2014 19:12

@MichaelHale I see. Let me see if I folow:
1. First you build the distance function of the data set,
2. Next you build the edges using `UnidirectedEdge`, which as far as I can tell means that no direction is given to the edge.
3. Build the graph with weighted edges using their euclidean distance.
4. Find the shortest path.

Pragabhava

Apr 23, 2014 18:54

Classic XY question, ja.

Pragabhava

Apr 23, 2014 18:53

@MichaelHale I need to build a path in the data set that connects one point to the other.

Pragabhava

Apr 23, 2014 18:51

@MichaelHale You are rigth! I haven't been clear enough. I guess in terms of graphs, one vertex can only be connected to it's nearest neighbor (speaking in euclidean distance terms)

Pragabhava

Apr 23, 2014 18:45

@MichaelHale I've been using NestList in combination with Nearest and NearestFunction, but I cant seem to prevent the path from going backwards. I'm a bit confused on how to enforce this condition.

Pragabhava

Apr 23, 2014 18:41

@MichaelHale There are around 4600 points. I should calculate all distances then and turn the data into a graph?

Pragabhava

Apr 23, 2014 18:28

I've been using Nearest and NearestFunction in a rather tricky way.

Pragabhava

Apr 23, 2014 18:27

Hello guys, I have a quick question which might been already asked but I can't seem to find: Is there a quick way to find the shortest path between to points in a data set? I've seen FindShortestPath but I don't know if (and how) it can be used for a data set.

$TeX - LaTeX$ TeX, LaTeX and Friends

\begin{chat}

Pragabhava

Dec 2, 2014 00:28

Hello guys. I have a quick question. Is there a simple way to remove all margin note spacing and giving it to text width in memoir class?

$Mathematics$ Discussion between Pragabhava and Jac…

Imported from a comment discussion on math.stackexchange.com/q...

Pragabhava

Nov 25, 2013 20:37

See you around then. A good book for reference is Churchill and Brown's Fourier Series and Boundary Value Probelms

Pragabhava

Nov 25, 2013 20:35

;)

Pragabhava

Nov 25, 2013 20:35

No problem. I'll edit my answer for further reference :)

Pragabhava

Nov 25, 2013 20:33

yes

Pragabhava

Nov 25, 2013 20:31

for each $\mu$, there are infinitely many $C$'s

Pragabhava

Nov 25, 2013 20:28

so, the auxiliary equation would be $$C = \frac{Y_{\sqrt{\mu} n }}{R}, \qquad \text{where } Y_{\sqrt{\mu} n} \text{ is a zero of } J_\sqrt{\mu}$$

Pragabhava

Nov 25, 2013 20:27

not just one

Pragabhava

Nov 25, 2013 20:27

the thing is that you have infinitely many zeros

Pragabhava

Nov 25, 2013 20:26

exactly

Pragabhava

Nov 25, 2013 20:26

this is done by typing C = \frac{Y_{\sqrt{\mu}}}{R}

Pragabhava

Nov 25, 2013 20:26

I'm guessing you are trying to write $$C = \frac{Y_{\sqrt{\mu}}}{R}$$

Pragabhava

Nov 25, 2013 20:23

that is the relationship you are looking for

Pragabhava

Nov 25, 2013 20:22

so, $f(R) = 0$ means $$C = \frac{\text{zero of } J_\sqrt{\mu}}{R}$$

Pragabhava

Nov 25, 2013 20:21

ok?

Pragabhava

Nov 25, 2013 20:21

then $$f(r) = c_1 J_\sqrt{\mu} (C r)$$

Pragabhava

Nov 25, 2013 20:20

with $|f(0)| < M$ and $f(R) = 0$

Pragabhava

Nov 25, 2013 20:20

we know $$r^2 f''(r) + r f'(r) + (C^2 r^2 - \mu)f(r) = 0$$

Pragabhava

Nov 25, 2013 20:19

suppose we don't know the bc's for $g$

Pragabhava

Nov 25, 2013 20:18

is as if we should started the other way around

Pragabhava

Nov 25, 2013 20:18

yes