r8po
r8po,
a MATLAB code which
carries out some basic linear algebra operations on R8PO matrices
(real 64 bit precision positive definite symmetric format).
Licensing:
The computer code and data files described and made available on this web page
are distributed under
the GNU LGPL license.
Languages:
r8po 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:
r8po_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;

r8ge_random.m,
returns a random R8GE matrix;

r8ge_to_r8po.m,
converts an R8GE matrix to an R8PO matrix;

r8po_det.m,
computes the determinant of an R8PO matrix factored by
R8PO_FA;

r8po_dif2.m,
returns the second difference matrix in R8PO format.

r8po_fa.m,
factors an R8PO matrix;

r8po_indicator.m,
returns an R8PO indicator matrix;

r8po_inverse.m,
returns the inverse of an R8PO matrix;

r8po_ml.m,
computes A*x after A has been factored by R8PO_FA;

r8po_mm.m,
multiplies two R8PO matrices;

r8po_mv.m,
multiplies an R8PO matrix times a vector;

r8po_print.m,
prints an R8PO matrix;

r8po_print_some.m,
prints some of an R8PO matrix;

r8po_random.m,
randomizes an R8PO matrix;

r8po_sl.m,
solves an R8PO linear system factored by R83P_FA;

r8po_to_r8ge.m,
copies an R8PO matrix to an R8GE matrix;

r8po_zeros.m,
zeros an R8PO matrix;

r8ut_print.m,
prints an R8UT matrix;

r8ut_print_some.m,
prints some of an R8UT matrix;

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

r8vec_print.m,
prints an R8VEC;
Last revised on 25 August 2022.