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-rw-r--r--man3/carg.321
1 files changed, 10 insertions, 11 deletions
diff --git a/man3/carg.3 b/man3/carg.3
index a7e3daa..bf5003f 100644
--- a/man3/carg.3
+++ b/man3/carg.3
@@ -3,7 +3,7 @@
.\"
.\" SPDX-License-Identifier: GPL-1.0-or-later
.\"
-.TH carg 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH carg 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
carg, cargf, cargl \- calculate the complex argument
.SH LIBRARY
@@ -12,7 +12,7 @@ Math library
.SH SYNOPSIS
.nf
.B #include <complex.h>
-.PP
+.P
.BI "double carg(double complex " z ");"
.BI "float cargf(float complex " z ");"
.BI "long double cargl(long double complex " z ");"
@@ -21,29 +21,29 @@ Math library
These functions calculate the complex argument (also called phase angle) of
.IR z ,
with a branch cut along the negative real axis.
-.PP
+.P
A complex number can be described by two real coordinates.
One may use rectangular coordinates and gets
-.PP
+.P
.in +4n
.EX
z = x + I * y
.EE
.in
-.PP
+.P
where
.I x\~=\~creal(z)
and
.IR y\~=\~cimag(z) .
-.PP
+.P
Or one may use polar coordinates and gets
-.PP
+.P
.in +4n
.EX
z = r * cexp(I * a)
.EE
.in
-.PP
+.P
where
.I r\~=\~cabs(z)
is the "radius", the "modulus", the absolute value of
@@ -52,9 +52,9 @@ and
.I a\~=\~carg(z)
is the "phase angle", the argument of
.IR z .
-.PP
+.P
One has:
-.PP
+.P
.in +4n
.EX
tan(carg(z)) = cimag(z) / creal(z)
@@ -78,7 +78,6 @@ T{
.BR cargl ()
T} Thread safety MT-Safe
.TE
-.sp 1
.SH STANDARDS
C11, POSIX.1-2008.
.SH HISTORY