r8sm
r8sm,
a MATLAB code which
carries out some basic linear algebra operations on R8SM matrices
(real 64 bit precision ShermanMorrison Au*v format).
Licensing:
The computer code and data files described and made available on this web page
are distributed under
the GNU LGPL license.
Languages:
r8sm is available in
a C version and
a C++ version and
a FORTRAN90 version and
a MATLAB version and
a Python version.
Related Data and Programs:
r8sm_test
linear_algebra,
MATLAB codes which
carry out various linear algebra operations for matrices
stored in a variety of formats.
Source Code:

i4_log_10.m,
returns the integer part of the logarithm base 10 of an I4;

r8_uniform_01.m,
returns a unit pseudorandom R8;

r8ge_fa.m,
factors an R8GE matrix;

r8ge_ml.m,
multiplies an R8GE matrix factored by R8GE_FA times a vector;

r8ge_print.m,
prints an R8GE matrix;

r8ge_print_some.m,
prints some of an R8GE matrix;

r8ge_sl.m,
solves a linear system factored by R8GE_FA;

r8sm_indicator.m,
returns the indicator matrix as an R8SM matrix.

r8sm_ml.m,
multiplies an R8SM matrix that has been factored by R8GE_FA
times a vector;

r8sm_mtv.m,
multiplies a vector times an R8SM matrix;

r8sm_mv.m,
multiplies an R8SM matrix times a vector;

r8sm_print.m,
prints an R8SM matrix;

r8sm_print_some.m,
prints some of an R8SM matrix;

r8sm_random.m,
randomizes an R8SM matrix;

r8sm_sl.m,
solves an R8SM linear system;

r8sm_to_r8ge.m,
copies an R8SM matrix to an R8GE matrix;

r8sm_zeros.m,
zeros an R8SM matrix;

r8vec_indicator1.m,
sets an R8VEC to the indicator vector;

r8vec_print.m,
prints an R8VEC;

r8vec2_print_some.m,
prints some of a pair of R8VEC's.
Last revised on 27 August 2022.