'\" t .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk .\" .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" .\" References consulted: .\" Linux libc source code .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) .\" 386BSD man pages .\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu) .\" Modified 1995-08-14 by Arnt Gulbrandsen .\" Modified 2002-07-27 by Walter Harms .\" (walter.harms@informatik.uni-oldenburg.de) .TH exp10 3 2024-05-02 "Linux man-pages 6.9.1" .SH NAME exp10, exp10f, exp10l \- base-10 exponential function .SH LIBRARY Math library .RI ( libm ", " \-lm ) .SH SYNOPSIS .nf .BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */" .B #include .P .BI "double exp10(double " x ); .BI "float exp10f(float " x ); .BI "long double exp10l(long double " x ); .fi .SH DESCRIPTION These functions return the value of 10 raised to the power of .IR x . .SH RETURN VALUE On success, these functions return the base-10 exponential value of .IR x . .P For various special cases, including the handling of infinity and NaN, as well as overflows and underflows, see .BR exp (3). .SH ERRORS See .BR math_error (7) for information on how to determine whether an error has occurred when calling these functions. .P For a discussion of the errors that can occur for these functions, see .BR exp (3). .SH ATTRIBUTES For an explanation of the terms used in this section, see .BR attributes (7). .TS allbox; lbx lb lb l l l. Interface Attribute Value T{ .na .nh .BR exp10 (), .BR exp10f (), .BR exp10l () T} Thread safety MT-Safe .TE .SH STANDARDS GNU. .SH HISTORY glibc 2.1. .SH BUGS Before glibc 2.19, the glibc implementation of these functions did not set .I errno to .B ERANGE when an underflow error occurred. .\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6787 .SH SEE ALSO .BR cbrt (3), .BR exp (3), .BR exp2 (3), .BR log10 (3), .BR sqrt (3)