From: Fleur Kelpin <fleur@bio.vu.nl>
To: Abraham David Smith <abrahamsmith@students.wisc.edu>
Cc: <gsl-discuss@sources.redhat.com>
Subject: Re: gsl_complex_rect undefined?
Date: Mon, 10 Dec 2001 12:37:00 -0000 [thread overview]
Message-ID: <Pine.GSO.4.33.0112181833270.20798-100000@monodon> (raw)
Message-ID: <20011210123700.Ld3RenrdiHx1tGoR3dpoLVJgeF_BKqt71vdDnBLxC1Y@z> (raw)
In-Reply-To: <20011218113006.A22589@euclid.dsl.wisc.edu>
Hi,
You need the include file gsl_complex_math.h
In case of similar trouble, grep the include files:
(in the /usr/local/include or similar:)
>cd gsl/complex
>grep gsl_complex_rect *.h
gsl_complex_math.h:gsl_complex gsl_complex_rect (double x, double y); /*
r= real+i*imag */
gsl_complex_math.h:gsl_complex_rect (double x, double y)
gsl_complex_math.h:#define GSL_COMPLEX_ONE (gsl_complex_rect(1.0,0.0))
gsl_complex_math.h:#define GSL_COMPLEX_ZERO (gsl_complex_rect(0.0,0.0))
gsl_complex_math.h:#define GSL_COMPLEX_NEGONE (gsl_complex_rect(-1.0,0.0))
Greetings,
Fleur Kelpin
On Tue, 18 Dec 2001, Abraham David Smith wrote:
>
> I am trying to use GSL 1.0 on an ix86 running an essentially normal RedHat
> Linux 7.1 installation (with all of RedHat's published patches applied
> to gcc, etc).
>
> Consider the following code snippet:
>
> #include <iostream.h>
> #include <gsl/gsl_complex.h>
> void main()
> {
> gsl_complex a = gsl_complex_rect(1.0,2.0);
> cout << GSL_REAL(a) << ", " << GSL_IMAG(a) << endl;
> GSL_SET_COMPLEX (&a, 3.0, 4.0);
> cout << GSL_REAL(a) << ", " << GSL_IMAG(a) << endl;
> }
>
> Compiling this with g++ gives:
>
> testcomplex.cpp: In function `int main (...)':
> testcomplex.cpp:9: `gsl_complex_rect' undeclared (first use this
> function)
> testcomplex.cpp:9: (Each undeclared identifier is reported only once
> for each function it appears in.)
>
>
> now consider the snippet:
>
> #include <iostream.h>
> #include <gsl/gsl_complex.h>
> void main()
> {
> gsl_complex a;
> cout << GSL_REAL(a) << ", " << GSL_IMAG(a) << endl;
> GSL_SET_COMPLEX (&a, 3.0, 4.0);
> cout << GSL_REAL(a) << ", " << GSL_IMAG(a) << endl;
> }
>
>
> this compiles and gives:
> 2.10391, 7.02217
> 3, 4
>
>
>
> According to page 18 of the GSL manual
> [ http://sources.redhat.com/gsl/ref/gsl-ref_5.html#SEC34 ], the function
> gsl_complex_rect should be defined. What's up here?
>
>
> --
> # Abraham David Smith UW--Madison Mathematics/Physics Undergraduate [*] #
> # <abrahamsmith@students.wisc.edu> Y!:abrahamdavidsmith AOL-IM:abrahamsmith #
> # http://euclid.dsl.wisc.edu/~abe Molon Labe! Defend your rights! #
> # [*]: The views I express are not necessarily those of the UW--Madison, etc. #
>
next prev parent reply other threads:[~2001-12-18 17:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-19 13:20 Abraham David Smith
2001-12-10 6:38 ` Abraham David Smith
2001-12-18 9:30 ` Abraham David Smith
2001-12-19 13:20 ` Fleur Kelpin [this message]
2001-12-10 12:37 ` Fleur Kelpin
2001-12-18 9:37 ` Fleur Kelpin
2001-12-19 13:20 ` Abraham David Smith
2001-12-19 13:20 ` Tisserand Patrice
2001-12-10 13:11 ` Tisserand Patrice
2001-12-18 9:39 ` Tisserand Patrice
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