forum.alglib.net

ALGLIB forum
It is currently Mon Dec 09, 2024 4:54 pm

All times are UTC


Forum rules


1. This forum can be used for discussion of both ALGLIB-related and general numerical analysis questions
2. This forum is English-only - postings in other languages will be removed.



Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Thanking topic.
PostPosted: Sat Apr 09, 2011 6:04 am 
Offline

Joined: Sat Apr 09, 2011 5:14 am
Posts: 2
Location: Russia, Habarowskiy krai, Komsomolsk-na-Amure
Two weeks ago I was attracted for solving a math problem: to approximate with a non linear method of Least squares some data generated by physical experiment from Nonlinear Optic. I was suggested using Mathcad for it.

I did not know, what the approximation and Least squares are. By searching in Google, I have looked at the site of alglib. First of all, I was interested with information about approximation.

I found, that alglib works with Python. I did not know, how to use Python. But I heard, that Python is a very easy to learn and powerful language. So, I downloaded alglib and began to study Python.

In three hours I had a working console program, that made a regression. It was just an introduction to alglib.

In one day I had a program, that made an approximation with a non linear method of Least squares, but
Beginer_parameters I need to find with Mathcad and input in my program.

In three days from the begining I had a complete console program. It found Beginer_parameters without user, if the function-approximater was a one of defined functions in my program.

In four days from the begining I had a program with a graphical interface. I did not know, what wxWidget was, but it was enough one day to bring for a console program a modern interface. Matplotlib's power I added by an one hour.

In the fifth day I made a documentation for a program in HTML, using Docbook system. It was a first my work with Docbook.

In the sixth day I made a presentation in PDF format, using Lyx and beamer. I did not know anything about them and have find the information suddenly.

I worked in Ubuntu Linux operating system and often tested my program in Windows 2000 through VirtualBox. So, my program works well in both operating systems. And I have solved my main problem - approximation! My program is under GPLv3 license.

Thanks a lot.


Attachments:
File comment: Graphic generated by a program through Matplotlib.
img - notlinappr_and_lin5-2.png
img - notlinappr_and_lin5-2.png [ 39.89 KiB | Viewed 4309 times ]
File comment: Main window of program.
img - winface.jpeg
img - winface.jpeg [ 143.34 KiB | Viewed 4312 times ]
Top
 Profile  
 
 Post subject: Re: Thanking topic.
PostPosted: Sun Apr 10, 2011 4:52 pm 
Offline

Joined: Sat Apr 09, 2011 5:14 am
Posts: 2
Location: Russia, Habarowskiy krai, Komsomolsk-na-Amure
Oh my god! SUDDENLY, I found a program, that do the same deal, but much more powerful: Fityk.
http://fityk.nieto.pl/

Fityk and my program have some common features: GPLv3, wxWidgets, predefined functions, user must to modify the code if he wants to add his own function, the answer is - analytic functions with calculated by fitting parameters. Funny.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group