Glad to hear it, -vale -- vale cofer-shabica 401.267.8253
On Tue, May 24, 2016 at 1:07 PM, Simon Bart <[email protected]> wrote: > Thanks. I made a simple function to do the derivative based on the > Newtonian method (f'(x) = (f(x+h)-f(x))/h and it works. I did end up using > gsl_function. > On May 24, 2016 1:04 PM, "Vale Cofer-Shabica" <[email protected]> > wrote: > >> Simon, >> >> I suspect that Cloud9 doesn't know which include/link flags to use. See >> this section [1] of the reference manual for details, but you can try: >> >> % gcc -Wall -I/usr/include -c example.c >> % gcc -L/usr/lib example.o -lgsl -lgslcblas -lm >> >> Which will compile your code in example.c to an executable called a.out. >> Note, I used the installation prefix /usr, which you indicated in a >> previous message. >> >> Hope that helps, >> vale >> >> [1] >> https://www.gnu.org/software/gsl/manual/gsl-ref.html#Compiling-and-Linking >> >> -- >> vale cofer-shabica >> 401.267.8253 >> >> On Tue, May 24, 2016 at 12:39 PM, Simon Bart <[email protected]> >> wrote: >> >>> Cloud9 has a built-in tab for compiling and running code which I use for >>> convenience, but I've also been trying with g++ without success >>> On May 24, 2016 12:36 PM, "Vale Cofer-Shabica" < >>> [email protected]> wrote: >>> >>>> Hi Simon, >>>> While that should fine, you could also use Ubuntu's GSL package, >>>> libgsl-dev. How are you compiling and executing your program? And when >>>> does the error appear? >>>> >>>> -vale >>>> >>>> -- >>>> vale cofer-shabica >>>> 401.267.8253 >>>> >>>> On Tue, May 24, 2016 at 12:12 PM, Simon Bart <[email protected]> >>>> wrote: >>>> >>>>> I'm using Cloud9 which is fully implemented Ubuntu except cloud hosted >>>>> and I installed GSL in my /usr/include library using the ./configure, make >>>>> and make install commands >>>>> On May 24, 2016 11:47 AM, "Vale Cofer-Shabica" < >>>>> [email protected]> wrote: >>>>> >>>>>> Hi Simon, >>>>>> >>>>>> Could you give us some more info about you set-up (OS & how you >>>>>> installed GSL) and how you're compiling your program? I suspect that you >>>>>> may be missing a flag to link the GSL libraries, -lgsl. >>>>>> >>>>>> -vale >>>>>> >>>>>> -- >>>>>> vale cofer-shabica >>>>>> 401.267.8253 >>>>>> >>>>>> On Tue, May 24, 2016 at 8:33 AM, Simon Bart <[email protected] >>>>>> > wrote: >>>>>> >>>>>>> I've posted my issue in the subject box. I'm new to GSL. It was the >>>>>>> best >>>>>>> library I could find with the most math and science operations. I am >>>>>>> using >>>>>>> C++, but I've even tried with C and the same error occurs. Hope >>>>>>> there's >>>>>>> some help here. >>>>>>> >>>>>>> Cheers, >>>>>>> Simon >>>>>>> >>>>>> >>>>>> >>>> >>
