Install Gnu Scientific Library Mac Os
How To Install Gnu Scientific Library
Gnu Scientific Library
Install Gnu Scientific Library Apt-get

An optional but recommended package (for improving some wireless model fidelity) is GNU scientific library: dnf install gsl gsl-devel Support for netanim animator: dnf install qt5-devel A GTK-based configuration system; Prior to ns-3.29, use GTK+ version 2: dnf install gtk2 gtk2-devel Starting with ns-3.29, use GTK+ version 3. Sep 18, 2012 GNU Scientific Library will need to be compiled separately and installed before your code will compile. It's not part of the Xcode, and I actually don't recall it being part of cygwin either. But then again, I haven't used cygwin in years so I could be wrong. The GNU Scientific Library (GSL) is a numerical library for C and C programmers. It is free software under the GNU General Public License. The library provides a wide range of mathematical routines such as random number generators, special functions and least-squares fitting. There are over 1000 functions in total with an extensive test suite. Oct 27, 2016 Download GNU Scientific Library for Windows for free. GNU Scientific Library(GSL) 2.2.1 for Windows. This version of GNU Scientific Library(GSL) is compiled for Windows using gcc 6.2.0. It contains both static as well as shared libraries. Jan 11, 2012 Download the GNU Scientific Library: Get latest from GNU. Expand the package using the command line tar xvfz gsl-1.14.tar.gz. Change into the `gsl-1.14` directory and configure the package.

Table of Contents

Installation
Compilation
Usage
- functions

The GNU Scientific library (GSL) is a powerful C/C++ numerical library.

This guide assumes you already have a working C/C++ compiler - check by entering gcc --version in Terminal. OSX's default Clang compiler is fine, otherwise this page describes how to install gcc 4.9.

OSX

Apparently GSL can be installed through Homebrew via

though installing it manually is just as simple, which we now describe.

Download gsl-latest.tar.gz from the GSL ftp site and unzip it anywhere (e.g. /Downloads)
Open the unzipped gsl folder in Terminal (e.g. cd ~/Downloads/gsl-2.4
Run sudo ./configure && make && make install

If the above gives a 'permission denied' error, instead try

You'll now be able to include GSL into your code from anywhere.

Ubuntu

You'll now be able to include GSL into your code from anywhere.

ARCUS-B

Oh wait, explore the use of...

In the ARCUS terminal, download GSL anywhere

and unzip it

then open the new folder e.g.

To install without admin permissions, we'll keep the GSL files in a folder called gsl .

Note some newer versions off gcc (e.g. 8) seem incompatible. Use an older version (e.g. gcc/5.3.0) and first call

Replace YOURUSERNAME below with your ARCUS-B username (e.g. abcd1234) and run

We'll need to remember this location when compiling

OSX

Compiling GSL with our code is easy; we simply add library flags -lm -lgsl -lgslcblas to our calls to gcc.

For example, we'd adapt the QuEST makefile to include

Ubuntu

Exactly as above for OSX.

ARCUS-B

Before compiling on ARCUS-B, we must extend LD_LIBRARY to include our gsl folder (replace YOURUSERNAME below)

This need only be done once each time we SSH into ARCUS.

Our compilation must additionally include the -lm -lgsl -lgslcblas libraries and flags -I/data/oums-quantopo/YOURUSERNAME/gsl/include and -L/data/oums-quantopo/YOURUSERNAME/gsl/lib.

For example, we'd modify the QuEST makefile to include

and just after that, insert

and modify the rules list

and finally the build commands

See a complete example of my QuEST & gsl makefile here.

import

The many different GSL functions are available in different source files.

For example, to use the matrix, linear equation solver, and matrix multiplication functionalities, respectively include

View available functions and their necessary header files can be found here.

functions

Sometimes GSL is so powerful, it's confusing to figure out how to do some simple things. So here are some examples

construct matrices and vectors

Matrices are dynamic objects, indexed from 0, which must be allocated before, and freed after, their use.

For a vector, replace matrix above with vector.

multiply matrices and vectors

GSL's matrix operations come under 'Basic Linear Algebra Subprograms' (BLAS), listed here

Install Gnu Scientific Library Mac Os

To multiply matrices matrA and matrB and store the result in matrC (all of which must be previously allocated by gsl_matrix_alloc), call:

In the name gsl_blas_dgemm, the d refers to double-precision matrices, and the final m refers to matrix. The other arguments are explained here.

To multiply a matrix matrA and a vector vecB and store the result in vecC (previously allocated by gsl_matrix_alloc and gsl_vector_alloc), call:

solve linear equations

Linear algebra operations are provided by

Here's how to solve A x = b (or matrA vecX = vecB) for x by LU decomposition, which involves creating an intermediate permutation structure

numerical errors

By default, a numerical error (e.g. attempting to invert a non-invertible matrix) will cause an error message and execution to stop.To instead detect and handle numerical errors, include

and call

before calling any numerical functions. Then functions (e.g. gsl_linalg_LU_solve) will return an integer 0 for success, otherwise an errorcode of those listed here (e.g. GSL_ERANGE, GSL_EIVANL).

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