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diff --git a/man3/carg.3 b/man3/carg.3 deleted file mode 100644 index 758afce92..000000000 --- a/man3/carg.3 +++ /dev/null @@ -1,91 +0,0 @@ -'\" t -.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de) -.\" -.\" SPDX-License-Identifier: GPL-1.0-or-later -.\" -.TH carg 3 (date) "Linux man-pages (unreleased)" -.SH NAME -carg, cargf, cargl \- calculate the complex argument -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <complex.h> -.PP -.BI "double carg(double complex " z ");" -.BI "float cargf(float complex " z ");" -.BI "long double cargl(long double complex " z ");" -.fi -.SH DESCRIPTION -These functions calculate the complex argument (also called phase angle) of -.IR z , -with a branch cut along the negative real axis. -.PP -A complex number can be described by two real coordinates. -One may use rectangular coordinates and gets -.PP -.in +4n -.EX -z = x + I * y -.EE -.in -.PP -where -.I x\~=\~creal(z) -and -.IR y\~=\~cimag(z) . -.PP -Or one may use polar coordinates and gets -.PP -.in +4n -.EX -z = r * cexp(I * a) -.EE -.in -.PP -where -.I r\~=\~cabs(z) -is the "radius", the "modulus", the absolute value of -.IR z , -and -.I a\~=\~carg(z) -is the "phase angle", the argument of -.IR z . -.PP -One has: -.PP -.in +4n -.EX -tan(carg(z)) = cimag(z) / creal(z) -.EE -.in -.SH RETURN VALUE -The return value is in the range of [\-pi,pi]. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.ad l -.nh -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.BR carg (), -.BR cargf (), -.BR cargl () -T} Thread safety MT-Safe -.TE -.hy -.ad -.sp 1 -.SH STANDARDS -C11, POSIX.1-2008. -.SH HISTORY -glibc 2.1. -C99, POSIX.1-2001. -.SH SEE ALSO -.BR cabs (3), -.BR complex (7) |