.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
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.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sat Jul 24 21:43:44 1993 by Rik Faith (faith@cs.unc.edu)
.\"
.\" Traducido al castellano (con permiso) por:
.\" Sebastian Desimone (chipy@argenet.com.ar) (desimone@fasta.edu.ar)
.\" Translation fixed on Mon Apr 20 15:53:46 CEST 1998 by Gerardo
.\"          Aburruzaga García <gerardo.aburruzaga@uca.es>
.\"
.TH ASIN 3  "15 Diciembre 1995" "GNU" "Manual del Programador de Linux"
.SH NOMBRE
asin \- función arco seno
.SH SINOPSIS
.nf
.B #include <math.h>
.sp
.BI "double asin(double " x );
.fi
.SH DESCRIPCIÓN
La función \fBasin()\fP calcula el arco seno de \fIx\fP; esto es,
el valor cuyo seno es \fIx\fP.  Si \fIx\fP cae fuera del rango
\-1 a 1, \fBasin()\fP falla y \fIerrno\fP toma un valor apropiado.
.SH "VALOR DEVUELTO"
La función \fBasin()\fP devuelve el arco seno en radianes y el
valor se define matemáticamente para estar entre -PI/2 y PI/2
(incluidos).
.SH "ERRORES"
.TP
.B EDOM
\fIx\fP esta fuera de rango.
.SH "CONFORME A"
SVID 3, POSIX, BSD 4.3, ISO 9899
.SH "VÉASE TAMBIÉN"
.BR acos "(3), " atan "(3), " atan2 "(3), " cos "(3), " sin "(3), " tan (3)