r8bto

r8bto, an Octave code which carries out some basic linear algebra operations on R8BTO matrices (real 64 bit precision Block Toeplitz format).

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

r8bto is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.

Related Data and Programs:

r8bto_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);
• r8_uniform_01.m, is a uniform random number generator;
• r8bto_dif2.m, returns the second difference matrix in R8BTO format;
• r8bto_indicator.m, returns an R8BTO indicator matrix;
• r8bto_mtv.m, multiplies a vector times an R8BTO matrix;
• r8bto_mv.m, multiplies an R8BTO matrix times a vector;
• r8bto_print.m, prints an R8BTO matrix;
• r8bto_print_some.m, prints some of an R8BTO matrix;
• r8bto_random.m, randomizes an R8BTO matrix;
• r8bto_sl.m, solves a linear system A*x=b where A is an R8BTO matrix;
• r8bto_to_r8ge.m, converts an R8BTO matrix to R8GE format;
• r8bto_zeros.m, zeros an R8BTO matrix;
• r8ge_fa.m, factors an R8GE matrix;
• r8ge_indicator.m, returns an R8GE indicator matrix;
• 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;
• r8vec_indicator1.m, sets an R8VEC to the indicator1 vector;
• r8vec_print.m, prints an R8VEC;