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#201 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 04:40:47

gAr

If nothing works, we can communicate by base64 encoded messages!

#202 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 02:20:27

gAr

Yes, that's true.
I'll avoid using url tags from now on.

#203 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 02:13:30

gAr

Because most of the customers are given dynamic address. Depends on how frequently the server sees such behavior.

#204 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 02:01:03

gAr

Okay, but I think the block may be temporary.

#205 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 01:52:29

gAr

Ah, yes, email.


Yesterday I did not check.

#206 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 01:42:03

gAr

I think it's not possible for me since the router doesn't save the history on reboot. I get only a local IP addr, so my machine's history won't help.

Check for the ones starting with 117.
If the suspicious contents are cached, he may verify it with my other post's contents.

#208 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 01:26:21

gAr

Oh, okay, I thought it was under MIF's control!

I did not note my old IP addresses, one was barred yesterday also. After removing the url tags and one tilde, I could post it.

#209 This is Cool » Running Raspbian in QEMU » 2014-02-28 01:21:23

gAr
Replies: 27

Do the following to test mathematica bundled in the recent raspberry pi's OS.

Get the latest raspbian: http://www.raspberrypi.org/downloads (2014-01-07-wheezy-raspbian.zip as of today)
Download and compile QEMU. Follow http://xecdesign.com/compiling-qemu/. Instead of cloning from git as shown there, download the zipped code and decompress it to a directory. So run the following command instead:

sudo apt-get install zlib1g-dev libsdl1.2-dev libpixman-1-dev

After going through that link and making sure, compile. We may use the home directory to install.

$ ./configure --target-list="arm-softmmu arm-linux-user" --enable-sdl --prefix=/home/<user dir>/qemu
$ make
$ make install

Unzip the raspbian, copy the .img file and kernel-qemu to /home/<user dir>/qemu/bin

Follow the steps given here: http://www.raspberrypi.org/forum/viewtopic.php?f=29&t=37386

I think these are sufficient. Some more links for reference:
http://mathgis.blogspot.in/2013/12/testing-wolfram-language-on-raspberry.html
http://www.raspberry-projects.com/pi/programming-in-c/compilers-and-ides/eclipse-raspberry-pi/installing-eclipse-on-qemu-emulated-raspberry-pi-windows
http://sebpiq.github.io/rpi-workshop-instructions/index.html

It may take about 5 minutes from the start of raspbian to the mathematica front-end, computations would be much slower than running it natively, but faster than getting the answers from wolframalpha. Anyway, running Mathematica on Rpi or in QEMU doesn't make much difference, gives timing almost the same as shown here: http://www.walkingrandomly.com/?p=5220
and BogoMIPS shown is 452.19 in QEMU, which is lower than Rpi's value of about 700. (command: cat /proc/cpuinfo)

So, other than simulations and big matrix operations, it's usable!

#210 Re: Help Me ! » Cutting a cone with a plane » 2014-02-28 01:06:38

gAr

Hmm, it had some links and some commands, maybe it mistakes it to be SQLi. That error response was more human like, it would be better if a corrective action was prescribed! That IP address is banned for now, I could login only after rebooting the router.

I'll try again with some modifications.

#211 Re: Help Me ! » Cutting a cone with a plane » 2014-02-27 20:25:05

gAr

Hi,

I wanted to post a new topic, but I get an error (clicked preview):

Forbidden

You don't have permission to access /post.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Any workaround?

#212 Re: Help Me ! » Logic behind the sequence » 2014-02-23 15:34:00

gAr

Hi phrontister,

Nice! I think you may collect the terms and flatten it.

#213 Re: Help Me ! » Sum of Fourier series » 2014-02-23 15:31:46

gAr

Yes I know complex numbers, de moivres formula and integration. Can you show how to solve the problem that I wrote now, [comment removed by administrator] instead of referring to another one?

No, I won't. You are still not specific. If you read the other one, you should have understood the relevance. All that is required is a change of sign.

#214 Re: Computer Math » Integrating a piecewise function with Maxima » 2014-02-23 06:13:02

gAr

I do not have a smartphone

Me neither! Just telling.

ARM version of which software?

Anything that you wanted to use. Did you know that you can get free Mathematica with Raspberry Pi?

Also, why Ubuntu Touch? Ain't Android a linux already?

Android is linux with Java bloat, owned by morons in or*cle! And to use its applications, you need to trade your identity with g**gle. Now they have billions of identities to give to the governments.

You can use ubuntu touch just like the desktop version. You can even have the terminal applications running, and all the repository is available to the phone also. Though I'm not sure whether they have all the packages for ARM architecture also.

#215 Re: Help Me ! » Sum of Fourier series » 2014-02-23 05:41:14

gAr

Yes but I don't see how it can help me.

You don't see that it's relevant to your question? Did you check my post or someone else's?

I don't understand anything of this. Are you still answering my question or someone else? Please go back and explain how I solve this problem: Find the sum of ..

Are you asking because the variable name used is different? Can't you substitute n=2, which is your question and the corresponding answer?

I can't help without you telling specifically what you do not understand. Are you familiar with complex numbers, DeMoivre's formula, integration etc.?

#216 Re: Help Me ! » Sum of Fourier series » 2014-02-23 04:52:19

gAr

Hi,

That's one way. Did you check the link I gave too?

We end up with:


and

for positive n

#220 Re: Help Me ! » Sum of Fourier series » 2014-02-23 02:37:08

gAr

It's in the link I gave!

#221 Re: Help Me ! » Sum of Fourier series » 2014-02-23 02:25:12

gAr

Hi bobbym,

Or by complex numbers and integrals.

#222 Re: Help Me ! » Sum of Fourier series » 2014-02-23 02:20:00

gAr

Looks like we have attempted a similar problem before:
#1 and #38: http://www.mathisfunforum.com/viewtopic.php?id=16080

#223 Re: Help Me ! » Logic behind the sequence » 2014-02-23 02:00:01

gAr

I meant
11 -> 12
13 -> 14
17 -> 18
19 -> 20
etc.

#224 Re: Help Me ! » Logic behind the sequence » 2014-02-23 00:31:35

gAr

Maybe: after 10, print the next number if it is prime?

#225 Re: Computer Math » Integrating a piecewise function with Maxima » 2014-02-22 23:42:06

gAr

You will have to find a way to have M around all the time.

Install a native linux in a phone (Ubuntu touch is on its way), and use ARM version of the software! Then can be used with a remote login.

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