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

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.ti -1c
.RI "program \fBzabs\fP"
.br
.RI "zabs tests the robustness and precision of the intrinsic ABS for double complex "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "program zabs"

.PP
zabs tests the robustness and precision of the intrinsic ABS for double complex 
.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\&. Stop on the first success\&.
!>     Mind that not all platforms might implement subnormal numbers\&.
!> (2) x = 2**m, where m = MINEXPONENT, \&.\&.\&., 0\&. Stop on the first success\&.
!> (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\&. Stop on the first success\&.
!>
!> Tests:
!> (a) y = x + 0 * I, |y| = x
!> (b) y = 0 + x * I, |y| = x
!> (c) y = (3/4)*x + x * I, |y| = (5/4)*x whenever (3/4)*x and (5/4)*x can be exactly stored
!> (d) y = (1/2)*x + (1/2)*x * I, |y| = (1/2)*x*sqrt(2) whenever (1/2)*x can be exactly stored
!>
!> Special cases:
!>
!> (i) Inf propagation
!>    (1) y = Inf + 0 * I, |y| is Inf\&.
!>    (2) y =-Inf + 0 * I, |y| is Inf\&.
!>    (3) y = 0 + Inf * I, |y| is Inf\&.
!>    (4) y = 0 - Inf * I, |y| is Inf\&.
!>    (5) y = Inf + Inf * I, |y| is Inf\&.
!>
!> (n) NaN propagation
!>    (1) y = NaN + 0 * I, |y| is NaN\&.
!>    (2) y = 0 + NaN * I, |y| is NaN\&.
!>    (3) y = NaN + NaN * I, |y| is NaN\&.
!>
!> 
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB44\fP of file \fBtest_zcomplexabs\&.f\fP\&.
.SH "Author"
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Generated automatically by Doxygen for LAPACK from the source code\&.