.TH "TESTING/EIG/zchkec.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*- .ad l .nh .SH NAME TESTING/EIG/zchkec.f .SH SYNOPSIS .br .PP .SS "Functions/Subroutines" .in +1c .ti -1c .RI "subroutine \fBzchkec\fP (thresh, tsterr, nin, nout)" .br .RI "\fBZCHKEC\fP " .in -1c .SH "Function/Subroutine Documentation" .PP .SS "subroutine zchkec (double precision thresh, logical tsterr, integer nin, integer nout)" .PP \fBZCHKEC\fP .PP \fBPurpose:\fP .RS 4 .PP .nf ZCHKEC tests eigen- condition estimation routines ZTRSYL, CTREXC, CTRSNA, CTRSEN In all cases, the routine runs through a fixed set of numerical examples, subjects them to various tests, and compares the test results to a threshold THRESH\&. In addition, ZTRSNA and CTRSEN are tested by reading in precomputed examples from a file (on input unit NIN)\&. Output is written to output unit NOUT\&. .fi .PP .RE .PP \fBParameters\fP .RS 4 \fITHRESH\fP .PP .nf THRESH is DOUBLE PRECISION Threshold for residual tests\&. A computed test ratio passes the threshold if it is less than THRESH\&. .fi .PP .br \fITSTERR\fP .PP .nf TSTERR is LOGICAL Flag that indicates whether error exits are to be tested\&. .fi .PP .br \fININ\fP .PP .nf NIN is INTEGER The logical unit number for input\&. .fi .PP .br \fINOUT\fP .PP .nf NOUT is INTEGER The logical unit number for output\&. .fi .PP .RE .PP \fBAuthor\fP .RS 4 Univ\&. of Tennessee .PP Univ\&. of California Berkeley .PP Univ\&. of Colorado Denver .PP NAG Ltd\&. .RE .PP .PP Definition at line \fB74\fP of file \fBzchkec\&.f\fP\&. .SH "Author" .PP Generated automatically by Doxygen for LAPACK from the source code\&.