Computes the inverse and determinant of a matrix. More...
Computes the inverse and determinant of a matrix.
This program computes the inverse and determinant of a square real matrix using the routines in Module DetInverse.c. The following option flags are accepted:
-n
] Generates a random symmetric size
\(\times\)size
metric. If this option is not given, -n 3
is assumed. This option (or its default) is overridden by the -i
option, below. -i
] Reads a matrix from an input file infile
using the function LALSReadVector()
. If the input file is specified as stdin
, the data is read from standard input (not a file named stdin
). -o
] Writes the determinant and inverse matrix to an output file outfile
. If the output file is specified as stdout
or stderr
, the data is written to standard output or standard error (not to files named stdout
or stderr
). -v
] Specifies that the inverse matrix is to be computed as well the determinant. -t
] Specifies that the computation is to be timed; timing information is written to stderr
. -s
] Specifies that the calculations are to be done to single-precision (REAL4
) rather than double-precision (REAL8
). -d
] Sets the debug level to debuglevel
. If not specified, level 0 is assumed. LALDReadVector()
, or LALSReadVector()
if the -s
option was given. The data block may be preceded by blank or comment lines (lines containing no parseable numbers), but once a parseable number is found, the rest should follow in a contiguous block. If the lines contain different numbers of data columns, or if there are fewer lines than columns, then an error is returned; if there are more lines than columns, then the extra lines are ignored.-v
option is specified, then another blank line will be appended to the output, followed by the inverse matrix written as \(N\) lines of \(N\) whitespace-separated numbers. Definition in file DetInverseTest.c.
Go to the source code of this file.
Macros | |
Error Codes | |
#define | DETINVERSETESTC_ENORM 0 |
Normal exit. More... | |
#define | DETINVERSETESTC_ESUB 1 |
Subroutine failed. More... | |
#define | DETINVERSETESTC_EARG 2 |
Error parsing arguments. More... | |
#define | DETINVERSETESTC_EMEM 3 |
Out of memory. More... | |
#define | DETINVERSETESTC_EFILE 4 |
Could not open file. More... | |
#define | DETINVERSETESTC_EFMT 5 |
Bad input file format. More... | |
#define DETINVERSETESTC_ENORM 0 |
Normal exit.
Definition at line 87 of file DetInverseTest.c.
#define DETINVERSETESTC_ESUB 1 |
Subroutine failed.
Definition at line 88 of file DetInverseTest.c.
#define DETINVERSETESTC_EARG 2 |
Error parsing arguments.
Definition at line 89 of file DetInverseTest.c.
#define DETINVERSETESTC_EMEM 3 |
Out of memory.
Definition at line 90 of file DetInverseTest.c.
#define DETINVERSETESTC_EFILE 4 |
Could not open file.
Definition at line 91 of file DetInverseTest.c.
#define DETINVERSETESTC_EFMT 5 |
Bad input file format.
Definition at line 92 of file DetInverseTest.c.