r8pp
r8pp,
a MATLAB code which
carries out some basic linear algebra operations on R8PP matrices
(real 64 bit precision positive definite symmetric packed format).
Licensing:
The computer code and data files described and made available on this web page
are distributed under
the GNU LGPL license.
Languages:
R8PP 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:
r8pp_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 abs(X);

r8ge_print.m,
prints an R8GE matrix;

r8ge_print_some.m,
prints some of an R8GE matrix;

r8pp_det.m,
computes the determinant of an R8PP matrix factored by
R8PP_FA;

r8pp_dif2.m,
returns the second difference matrix in R8PP format.

r8pp_fa.m,
factors an R8PP matrix;

r8pp_indicator.m,
returns an R8PP indicator matrix;

r8pp_mv.m,
multiplies an R8PP matrix times a vector;

r8pp_print.m,
prints an R8PP matrix;

r8pp_print_some.m,
prints some of an R8PP matrix;

r8pp_random.m,
randomizes an R8PP matrix;

r8pp_sl.m,
solves an R8PP linear system factored by R83P_FA;

r8pp_to_r8ge.m,
copies an R8PP matrix to an R8GE matrix;

r8pp_zeros.m,
zeros an R8PP matrix;

r8vec_indicator1.m,
sets an R8VEC to the indicator1 vector;

r8vec_print.m,
prints an R8VEC;
Last revised on 26 August 2022.