🚀 go-pugleaf

HI,

I'm trying to solve the eigenvalue / eigenvector problem in C++ (I need
both). TNT ( http://math.nist.gov/tnt/ ) doesn't have an eigenvalue
problem routine of its own, but it has a lapack.h header file that
supposedly calls LAPACK Fortran subroutines for this.

I installed LAPACK and BLAS RPMs on my Redhat system, however, linking
with lapack doesn't work: When I do

g++ -llapack -o f f.o
or
g++ -llapack -lblas -o f f.o

the linker ld tells me that a bunch of refrences are undefined (
 e_wsfe z_abs c_sqrt s_cmp r_lg10 z_exp c_exp etime_ c_div do_fio pow_dd
z_sqrt s_cat s_stop c_abs d_lg10 z_div s_wsfe s_copy)
Using "grep" I figured out that they are only encountered in lapack
library files.

How can I get this to link? TNT doesn't not provide any documentation
to speak of or support for linking to Fortran routines.

Wroot


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