.\" 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 19:42:57 1993 by Rik Faith (faith@cs.unc.edu)
.\" Modified Aug 14 1995 by Arnt Gulbrandsen <agulbra@troll.no>
.\" Translated Jan 9 1998 by Gerardo Aburruzaga García 
.\"	<gerardo.aburruzaga@uca.es>
.TH EXP 3  "9 de Enero de 1998" "GNU" "Manual del Programador de Linux"
.SH NOMBRE
exp, log, log10, pow \- funciones exponenciales, logarítmicas y potencia
.SH SINOPSIS
.nf
.B #include <math.h>
.sp
.BI "double exp(double " x );
.sp
.BI "double log(double " x );
.sp
.BI "double log10(double " x );
.sp
.BI "double pow(double " x ", double " y );
.fi
.SH DESCRIPCIÓN
La función \fBexp()\fP devuelve el valor de e (la base de los
logaritmos naturales) elevado a la potencia \fIx\fP.
.PP
La función \fBlog()\fP devuelve el logaritmo neperiano de \fIx\fP.
.PP
La función \fBlog10()\fP devuelve el logaritmo decimal de \fIx\fP.
.PP
La función \fBpow()\fP devuelve el valor de \fIx\fP elevado a \fIy\fP.
.SH "ERRORES"
Las funciones \fBlog()\fP y \fBlog10()\fP pueden devolver los
siguientes errores:
.TP
.B EDOM
El argumento \fIx\fP es negativo.
.TP
.B ERANGE
El argumento \fIx\fP es cero. El logaritmo de cero no está definido.
.PP
La función \fBpow()\fP puede devolver el siguiente error:
.TP
.B EDOM
El argumento \fIx\fP es negativo e \fIy\fP no es un valor entero.
Esto daría un número complejo.
.SH "CONFORME A"
SVID 3, POSIX, BSD 4.3, ISO 9899
.SH "VÉASE TAMBIÉN"
.BR sqrt "(3), " cbrt (3)