.TH "INSTALL/test_zcomplexdiv.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
INSTALL/test_zcomplexdiv.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "program \fBzdiv\fP"
.br
.RI "zdiv tests the robustness and precision of the double complex division "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "program zdiv"

.PP
zdiv tests the robustness and precision of the double complex division 
.PP
\fBAuthor\fP
.RS 4
Weslley S\&. Pereira, University of Colorado Denver, U\&.S\&. 
.PP
.nf
 Real values for test:
 (1) x = 2**m, where m = MINEXPONENT-DIGITS, \&.\&.\&., MINEXPONENT-1\&.
     Mind that not all platforms might implement subnormal numbers\&.
 (2) x = 2**m, where m = MINEXPONENT, \&.\&.\&., 0\&.
 (3) x = OV, where OV is the overflow threshold\&. OV^2 overflows but the norm is OV\&.
 (4) x = 2**m, where m = MAXEXPONENT-1, \&.\&.\&., 1\&.

 Tests:
 (a) y = x + 0 * I, y/y = 1
 (b) y = 0 + x * I, y/y = 1
 (c) y = x + x * I, y/y = 1
 (d) y1 = 0 + x * I, y2 = x + 0 * I, y1/y2 = I
 (e) y1 = 0 + x * I, y2 = x + 0 * I, y2/y1 = -I
 (f) y = x + x * I, y/conj(y) = I

 Special cases:

 (i) Inf inputs:
    (1) y = ( Inf + 0   * I)
    (2) y = ( 0   + Inf * I)
    (3) y = (-Inf + 0   * I)
    (4) y = ( 0   - Inf * I)
    (5) y = ( Inf + Inf * I)
 Tests:
    (a) 0 / y is either 0 or NaN\&.
    (b) 1 / y is either 0 or NaN\&.
    (c) y / y is NaN\&.

 (n) NaN inputs:
    (1) y = (NaN + 0   * I)
    (2) y = (0   + NaN * I)
    (3) y = (NaN + NaN * I)
 Tests:
    (a) 0 / y is NaN\&.
    (b) 1 / y is NaN\&.
    (c) y / y is NaN\&.
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB57\fP of file \fBtest_zcomplexdiv\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.