libarmadillo-dev - 1:14.2.1+dfsg-1+b1 main

Armadillo is a streamlined C++ linear algebra library (matrix maths)
aiming towards a good balance between speed and ease of use. Integer,
floating point and complex numbers are supported, as well as a subset
of trigonometric and statistics functions. Optional integration with
LAPACK and ATLAS libraries is also provided.
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This package has the development libraries and headers for Armadillo.