r8to

r8to, an Octave code which carries out some basic linear algebra operations on R8TO matrices (real 64 bit precision Toeplitz 2*N-1 format).

Licensing:

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

Languages:

r8to 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:

r8to_test

linear_algebra, an Octave code which carries 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;
• r8to_dif2.m, returns the second difference matrix as an R8TO.
• r8to_indicator.m, sets up an R8TO indicator matrix;
• r8to_mtv.m, multiplies a vector times an R8TO matrix;
• r8to_mv.m, multiplies an R8TO matrix times a vector;
• r8to_print.m, prints an R8TO matrix;
• r8to_print_some.m, prints some of an R8TO matrix;
• r8to_random.m, randomizes an R8TO matrix;
• r8to_sl.m, solves A*x=b, where A is an R8TO matrix.
• r8to_slt.m, solves A'*x=b, where A is an R8TO matrix.
• r8to_to_r8ge.m, copies an R8TO matrix to an R8GE matrix;
• r8to_zeros.m, zeros an R8TO matrix;
• r8vec_indicator1.m, sets an R8VEC to the indicator1 vector;
• r8vec_print.m, prints an R8VEC;
• r8vec_uniform_01.m, returns a random R8VEC;