gsl

Up until now I've managed to get Xcode to link to the Gnu Scientific Libraries (GSL) which I've installed under /usr/local/lib/ and with header files under /usr/local/include. Under "Build Phases" > "Link Binary With Libraries" I had added libgsl.a etc. Today, Xcode gives an error message claiming it can't find header files. For example #include <stdio.h> #include <gsl/gsl_matrix.h> int main(int argc, const char * argv[]) { printf("Hello, World!\n"); return 0; } results in 'gsl/gsl_matrix.h' file not found. I've tried to change the User Header Search path to no avail. Using gcc main.c -lgsl

I am trying to turn a C project of mine from sequential into parallel programming. Although most of the code has now been redesigned from scratch for this purpose, the generation of random numbers is still at its core. Thus, bad performance of the random number generator (RNG) affects very badly the overall performance of the program. I wrote some code lines (see below) to show the problem I am facing without much verbosity. The problem is the following: everytime the number of threads nt increases, the performance gets singnificantly worse. At this workstation (linux kernel 2.6.33.4; gcc 4.4

I'm trying to install the gsl package for R, which I understand is simply a wrapper around the GSL, under OSX Mavericks. I've tried the obvious: > install.packages('gsl') Installing package into ‘/Users/myusername/Library/R/3.1/library’ (as ‘lib’ is unspecified) package ‘gsl’ is available as a source package but not as a binary Warning in install.packages : package ‘gsl’ is not available (for R version 3.1.0) So I ran > install.packages('gsl',type = 'source') Installing package into ‘/Users/myusername/Library/R/3.1/library’ (as ‘lib’ is unspecified) trying URL 'http://cran.rstudio.com/src

I have been having troubles for some time now installing gsl on ubuntu. I followed this guide: http://www.brianomeara.info/tutorials/brownie/gsl with version 1.15. did ./configure, make install, etc. Now im trying to run an example: http://www.mas.ncl.ac.uk/~ndjw1/teaching/sim/gsl.html the compile command is gcc -I/usr/include/gsl -lgsl -lgslblasnative gsl_test.c -o gsl_test and the error I get is: /usr/bin/ld: cannot find -lgslblasnative I have also tried other examples before with the same error, that it cant find the libraries im trying to access. I am really a newbie to compiling/linking

I'm trying to reporduce some code from R in C, so I'm trying to fit a linear regression using the gsl_fit_linear() function. In R I'd use the lm() function, which returns a p-value for the fit using this code: lmAvgs<- lm( c(1.23, 11.432, 14.653, 21.6534) ~ c(1970, 1980, 1990, 2000) ) summary(lmAvgs) I've no idea though how to go from the C output to a p-value, my code looks something like this so far: int main(void) { int i, n = 4; double x[4] = { 1970, 1980, 1990, 2000 }; double y[4] = {1.23, 11.432, 14.653, 21.6534}; double c0, c1, cov00, cov01, cov11, sumsq; gsl_fit_linear (x, 1, y, 1, n,