any good matrix lib?

REDDemon · Post by **REDDemon** » Tue May 17, 2011 8:10 am

I'm searching for a zlib (or similiar licenses) licensed math library (c/c++ of course). That is able to perform matrices operations. For 4x4 Matrices I use irrlicht's CMatrix4. But now I need to work also with 3x3 and 5x5 matrices (multplying 2 matrices for combining them into 1 matrix, post and pre-multiply matrices by a vector).

Is there any good library or I have to write my own? i tried to search out without success.

CuteAlien · Post by **CuteAlien** » Tue May 17, 2011 8:34 am

uBLAS in boost has a matrix class that works with different sizes. But I never worked with it myself, so I can't tell you anything about it.

REDDemon · Post by **REDDemon** » Wed May 18, 2011 11:19 am

Adding Boost's BLAS to my project make it a little bit "heavy"(has many advanced features i don't need.. it is a very good library). I found also a web site with more than 20 links to math libraries. But almost all of them are not OOP, are not clear in use or simply miss features that I need (not all of them can perform a Vector*Matrix operation)
or are not zlib/MIt/bsd licensed so using them can be problematic in opensource projects.

Final decision:
I will write my own starting from the irrlicht's "matrix4.h" as base model.

serengeor · Post by **serengeor** » Wed May 18, 2011 1:16 pm

REDDemon wrote:Adding Boost's BLAS to my project make it a little bit "heavy"(has many advanced features i don't need.. it is a very good library).

You know you can just separate it and use the parts only necessary for it to work?

REDDemon · Post by **REDDemon** » Thu May 19, 2011 5:32 am

I don't know if boost's linear algebraic module was thinked for that. Maybe somewhere there is a piece of code that was taking as assumption that somewhere something is done etc.. it is much simpler writing a new library at this point since it will be exactly as I want. I 've almost finished it. Thanks for suggestion anyway