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I'm looking to compute the Moore-Penrose pseudo-inverse of a matrix in C++, can someone point me to a library implementation or a numerical recipe?
Thanks!
You need 'Single Value Decomposition', from which you can find a C implementation here from Numerical Recipes in C.
This other site describes how to use single value decomposition to calculate the pseudo-inverse.
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Closed 8 years ago.
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Is there any C++ IDE that can display LaTeX formulas in C++ comments as formulas? I envision this as a very handy instrument to document code that implements some math, but in order for it to be useful LaTeX code should be compiled and shown as set of glyphs.
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Is there an easy way to create text tables with +-| characters in c/c++? I'm basically looking for a library. I was almost certain that a library exists and would be easy to find but I didn't find any.
To be more precise, I'm looking for a library to create table like the following:
+----+---+
| 1.2|4.2|
+----+---+
|-0.1| .0|
+----+---+
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I wish to generate a graph with a date on the X axis and price on the Y, are there any decent libraries out there which will help me accomplish this with very little overhead?
thanks in advance
I really like qwt, but this is not low overhead. maybe gplot, but give more info about your contaxt perharps.
http://qwt.sourceforge.net/
http://gplot.sourceforge.net/
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I am seeking a C or C++ version of gamma and log gamma functions.
Are there any code pieces or libraries recommended?
If possible, I want to know the principle of the implementations.
Thank you!!!
In c++11, you can use std::lgamma for log gamma, and tgamma for gamma.
If you can't use C++11: The GNU GSL has all Gamma function you would ever need: http://www.gnu.org/software/gsl/manual/html_node/Gamma-Functions.html#index-gsl_005fsf_005flngamma-583
Or you can have a look at boost's math special functions:
http://www.boost.org/doc/libs/1_53_0/libs/math/doc/sf_and_dist/html/math_toolkit/special/sf_gamma/lgamma.html
You can try to have a look at Numerical Recipes In C, it should contain the functions you need.
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I need something alike CGAL gives in terms of simple boolean operations on top of 3d meshes but in lib Bullet. So I wonder if there is 3D Boolean Operations on meshes in Bullet? (cant find any dedicated chapter in manual, am I blind?)