| math.3 (208594) | math.3 (216211) |
|---|---|
| 1.\" Copyright (c) 1985 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 12 unchanged lines hidden (view full) --- 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" from: @(#)math.3 6.10 (Berkeley) 5/6/91 | 1.\" Copyright (c) 1985 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 12 unchanged lines hidden (view full) --- 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" from: @(#)math.3 6.10 (Berkeley) 5/6/91 |
| 29.\" $FreeBSD: head/lib/msun/man/math.3 208594 2010-05-27 13:56:27Z uqs $ | 29.\" $FreeBSD: head/lib/msun/man/math.3 216211 2010-12-05 22:11:22Z das $ |
| 30.\" | 30.\" |
| 31.Dd December 16, 2007 | 31.Dd December 5, 2010 |
| 32.Dt MATH 3 33.Os 34.Sh NAME 35.Nm math 36.Nd "floating-point mathematical library" 37.Sh LIBRARY 38.Lb libm 39.Sh SYNOPSIS --- 137 unchanged lines hidden (view full) --- 177expm1 exp(x)\-1 178j0 Bessel function of the first kind of the order 0 179j1 Bessel function of the first kind of the order 1 180jn Bessel function of the first kind of the order n 181lgamma log gamma function 182log natural logarithm 183log10 logarithm to base 10 184log1p log(1+x) | 32.Dt MATH 3 33.Os 34.Sh NAME 35.Nm math 36.Nd "floating-point mathematical library" 37.Sh LIBRARY 38.Lb libm 39.Sh SYNOPSIS --- 137 unchanged lines hidden (view full) --- 177expm1 exp(x)\-1 178j0 Bessel function of the first kind of the order 0 179j1 Bessel function of the first kind of the order 1 180jn Bessel function of the first kind of the order n 181lgamma log gamma function 182log natural logarithm 183log10 logarithm to base 10 184log1p log(1+x) |
| 185.\" log2 base 2 logarithm | 185log2 base 2 logarithm |
| 186pow exponential x**y 187sin trigonometric function 188sinh hyperbolic function 189tan trigonometric function 190tanh hyperbolic function 191tgamma gamma function 192y0 Bessel function of the second kind of the order 0 193y1 Bessel function of the second kind of the order 1 194yn Bessel function of the second kind of the order n 195.El 196.Pp | 186pow exponential x**y 187sin trigonometric function 188sinh hyperbolic function 189tan trigonometric function 190tanh hyperbolic function 191tgamma gamma function 192y0 Bessel function of the second kind of the order 0 193y1 Bessel function of the second kind of the order 1 194yn Bessel function of the second kind of the order n 195.El 196.Pp |
| 197Unlike the algebraic functions listed earlier, the routines | 197The routines |
| 198in this section may not produce a result that is correctly rounded, 199so reproducible results cannot be guaranteed across platforms. 200For most of these functions, however, incorrect rounding occurs 201rarely, and then only in very-close-to-halfway cases. 202.Sh SEE ALSO 203.Xr fenv 3 , 204.Xr ieee 3 , 205.Xr tgmath 3 --- 10 unchanged lines hidden (view full) --- 216.Fx 1.1.5 . 217Additional routines, including ones for 218.Vt float 219and 220.Vt long double 221values, were written for or imported into subsequent versions of FreeBSD. 222.Sh BUGS 223The | 198in this section may not produce a result that is correctly rounded, 199so reproducible results cannot be guaranteed across platforms. 200For most of these functions, however, incorrect rounding occurs 201rarely, and then only in very-close-to-halfway cases. 202.Sh SEE ALSO 203.Xr fenv 3 , 204.Xr ieee 3 , 205.Xr tgmath 3 --- 10 unchanged lines hidden (view full) --- 216.Fx 1.1.5 . 217Additional routines, including ones for 218.Vt float 219and 220.Vt long double 221values, were written for or imported into subsequent versions of FreeBSD. 222.Sh BUGS 223The |
| 224.Fn log2 225function is missing, and many functions are not available in their | 224.Fn cbrt 225function and many of the transcendental functions 226are not available in their |
| 226.Vt "long double" 227variants. 228.Pp 229Many of the routines to compute transcendental functions produce 230inaccurate results in other than the default rounding mode. 231.Pp | 227.Vt "long double" 228variants. 229.Pp 230Many of the routines to compute transcendental functions produce 231inaccurate results in other than the default rounding mode. 232.Pp |
| 232On some architectures, trigonometric argument reduction is not 233performed accurately, resulting in errors greater than 1 | 233On the i386 platform, trigonometric argument reduction is not 234performed accurately for very large arguments, resulting in errors 235greater than 1 |
| 234.Em ulp | 236.Em ulp |
| 235for large arguments to | 237for such arguments to |
| 236.Fn cos , 237.Fn sin , 238and 239.Fn tan . | 238.Fn cos , 239.Fn sin , 240and 241.Fn tan . |