NAME
Math::Libgsl::Elementary - An interface to libgsl, the Gnu Scientific Library - elementary functions.
SYNOPSIS
use Math::Libgsl::Elementary :ALL;
DESCRIPTION
Math::Libgsl::Elementary provides an interface to the Elementary Functions in the libgsl, the GNU Scientific Library.
This package provides both the low-level interface to the C library (Raw) and a more comfortable interface layer for the Raku programmer.
Math::Libgsl::Elementary makes these tags available:
sub log1p(Num() $x --> Num) is export(:elem)
Computes the value of log(1 + x).
sub expm1(Num() $x --> Num) is export(:elem)
Computes the value of exp(x) - 1.
sub hypot(Num() $x, Num() $y --> Num) is export(:elem)
Computes the value of sqrt(x² + y²).
sub hypot3(Num() $x, Num() $y, Num() $z --> Num) is export(:elem)
Computes the value of sqrt(x² + y² + z²).
sub ldexp(Num() $x, Int $e --> Num) is export(:elem)
Computes the value of x * 2ᵉ.
sub frexp(Num() $x --> List) is export(:elem)
Computes the value of f such that x = f * 2ᵉ. It returns a list of two values: f and e.
sub int-pow(Num() $x, Int $e --> Num) is export(:smallint)
Computes the value of xᵉ with e ∈ ℤ.
sub uint-pow(Num() $x, UInt $e --> Num) is export(:smallint)
Computes the value of xᵉ with e ∈ ℕ.
sub pow2(Num() $x --> Num) is export(:smallint)
Computes the value of x².
sub pow3(Num() $x --> Num) is export(:smallint)
Computes the value of x³.
sub pow4(Num() $x --> Num) is export(:smallint)
Computes the value of x⁴.
sub pow5(Num() $x --> Num) is export(:smallint)
Computes the value of x⁵.
sub pow6(Num() $x --> Num) is export(:smallint)
Computes the value of x⁶.
sub pow7(Num() $x --> Num) is export(:smallint)
Computes the value of x⁷.
sub pow8(Num() $x --> Num) is export(:smallint)
Computes the value of x⁸.
sub pow9(Num() $x --> Num) is export(:smallint)
Computes the value of x⁹.
C Library Documentation
For more details on libgsl see https://www.gnu.org/software/gsl/. The excellent C Library manual is available here https://www.gnu.org/software/gsl/doc/html/index.html, or here https://www.gnu.org/software/gsl/doc/latex/gsl-ref.pdf in PDF format.
Prerequisites
This module requires the libgsl library to be installed. Please follow the instructions below based on your platform:
Debian Linux and Ubuntu 20.04
sudo apt install libgsl23 libgsl-dev libgslcblas0
That command will install libgslcblas0 as well, since it's used by the GSL.
Ubuntu 18.04
libgsl23 and libgslcblas0 have a missing symbol on Ubuntu 18.04. I solved the issue installing the Debian Buster version of those three libraries:
Installation
To install it using zef (a module management tool):
$ zef install Math::Libgsl::Elementary
AUTHOR
Fernando Santagata nando.santagata@gmail.com
COPYRIGHT AND LICENSE
Copyright 2020 Fernando Santagata
This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.