r8vm

r8vm, an Octave code which carries out some basic linear algebra operations on R8VM matrices (real 64 bit precision Vandermonde format).

Licensing:

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

Languages:

r8vm 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:

r8vm_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_factorial.m, returns the factorial function as an R8.
• r8_uniform_01.m, is a uniform random number generator;
• 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_r8vm.m, converts an R8GE matrix to an R8VM matrix;
• r8vec_indicator1.m, sets an R8VEC to the indicator1 vector;
• r8vec_print.m, prints an R8VEC;
• r8vec_print_some.m, prints some of an R8VEC;
• r8vec_uniform_01.m, returns a random R8VEC;
• r8vm_det.m, computes the determinant of an R8VM matrix;
• r8vm_indicator.m, returns an R8VM indicator matrix;
• r8vm_indicator_det.m, returns the determinant of an R8VM indicator matrix;
• r8vm_mtv.m, multiplies a vector times an R8VM matrix;
• r8vm_mv.m, multiplies an R8VM matrix times a vector;
• r8vm_print.m, prints an R8VM matrix;
• r8vm_print_some.m, prints some of an R8VM matrix;
• r8vm_random.m, randomizes an R8VM matrix;
• r8vm_sl.m, solves A*x=b, where A is an R8VM matrix;
• r8vm_slt.m, solves A'*x=b, where A is an R8VM matrix;
• r8vm_to_r8ge.m, copies an R8VM matrix to an R8GE matrix;
• r8vm_zeros.m, zeros an R8VM matrix;