LMath and LMComponents 0.6.1

[glorfin]

After a break, I return to this library. New release, 0.6.1.
There are some small changes in LMath itself. However, most important is that several data filtering components (THighPassFilter, TNotchFilter, TBandPassFilter, and  TChebyshevFilter were added to LMComponents. All of these components can filter pre-existing datasets, as well as be used for real-time filtering during data acquisition. Besides that, ability to filter in real time was added to TMoveAvFilter and TMedianFilter. The only filter which does not have this ability remains TGaussFilter.

https://sourceforge.net/projects/lmath-library/

 

[AlexTP]

I just added info about LMComponents to the
https://wiki.freepascal.org/LMath
Pls review and edit if needed.

Maybe it's good to add wiki infos about each unit of LMath? Do it if needed. I did this for each unit of LMComponents.

[LV]

great job, thanks 

[glorfin]

I just added info about LMComponents to the
https://wiki.freepascal.org/LMath
Pls review and edit if needed.

Maybe it's good to add wiki infos about each unit of LMath? Do it if needed. I did this for each unit of LMComponents.

Many thanks! I will look for it. Info for every unit is probably too much, but for every sub-package certainly.
(And using this possibility, thank you for SynWrite, I am still using it).

[LV]

I'm trying to use some math libraries in my apps.  What is the advantage of LMath compared to, for example, ALGLIB (Free Edition)? Maybe it's got something to do with the license or the open source code or what? Thanks.

[glorfin]

Well, license, yes. Free AlgLib is distributed under strict GPL, while LMath under modified LGPL. Besides, in my view, it is easier to use. At list, when I was not yet supporter of LMath and was choosing between AlgLib and DMath for my own project (Nest-o-Patch, https://sourceforge.net/projects/nestopatch/, I found building DMath much easier, and LMath is organized as set of Lazarus packages, which makes it even more easy. LMath includes some components; I think that filtering components may be most interesting among them. Package MathUtils makes (in my view) easier work with arrays of real numbers.

Having said all that, I don't think, one can say that LMath is better than AlgLib; it is largely question of taste and one's needs.
For example, in many cases AlgLib is written in more efficient way and can be preferred for really intensive calculations (though it is also question of testing); procedures in LMath are often easier to understant, exactly because they are not obscured by heavy optimizations.

[LV]

@glorfin, that was a clear and easy to understand explanation. Thanks for your work!

[CM630]

Could you advice me which part of LMath could be used to determine main and harmonic frequences of (electrical) signal?