| lgamma.3 (a9dbc63dc2a2c6866b650af62ab04bc59da50d30) | lgamma.3 (487d13c0e7f1c5405da4ba06ba630b15da1bdd45) |
|---|---|
| 1.\" Copyright (c) 1985, 1991 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. --- 80 unchanged lines hidden (view full) --- 89lg = lgamma(x); g = signgam\(**exp(lg); 90.Ed 91.Pp 92Only after 93.Fn lgamma 94or 95.Fn lgammaf 96has returned can signgam be correct. | 1.\" Copyright (c) 1985, 1991 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. --- 80 unchanged lines hidden (view full) --- 89lg = lgamma(x); g = signgam\(**exp(lg); 90.Ed 91.Pp 92Only after 93.Fn lgamma 94or 95.Fn lgammaf 96has returned can signgam be correct. |
| 97.\.Pp 98.\For arguments in its range, 99.\.Fn gamma 100.\and 101.\.Fn gammaf 102.\is preferred, as for positive arguments 103.\it is accurate to within one unit in the last place. 104.\Exponentiation of 105.\.Fn lgamma 106.\will lose up to 10 significant bits. | 97.\".Pp 98.\"For arguments in its range, 99.\".Fn gamma 100.\"and 101.\".Fn gammaf 102.\"is preferred, as for positive arguments 103.\"it is accurate to within one unit in the last place. 104.\"Exponentiation of 105.\".Fn lgamma 106.\"will lose up to 10 significant bits. |
| 107.Sh RETURN VALUES 108.Fn gamma , 109.Fn gammaf , 110.Fn lgamma , 111and 112.Fn lgammaf 113return appropriate values unless an argument is out of range. 114Overflow will occur for sufficiently large positive values, and --- 13 unchanged lines hidden (view full) --- 128.Sh HISTORY 129The 130.Fn lgamma 131function appeared in 132.Bx 4.3 . 133The 134.Fn gamma 135function appeared in | 107.Sh RETURN VALUES 108.Fn gamma , 109.Fn gammaf , 110.Fn lgamma , 111and 112.Fn lgammaf 113return appropriate values unless an argument is out of range. 114Overflow will occur for sufficiently large positive values, and --- 13 unchanged lines hidden (view full) --- 128.Sh HISTORY 129The 130.Fn lgamma 131function appeared in 132.Bx 4.3 . 133The 134.Fn gamma 135function appeared in |
| 136.Bx 4.4 137as a function which computed \(*G(x). | 136.Bx 4.4 137as a function which computed \(*G(x). |
| 138In many older libraries the function 139.Fn gamma 140calculated the same value as 141.Fn lgamma . | 138In many older libraries the function 139.Fn gamma 140calculated the same value as 141.Fn lgamma . |
| 142Now | 142Now |
| 143.Fn gamma 144computes ln\||\(*G(x)|, 145but it uses a different algorithm, | 143.Fn gamma 144computes ln\||\(*G(x)|, 145but it uses a different algorithm, |
| 146and it does not set | 146and it does not set |
| 147.Fa signgam . 148The 149.St -isoC-99 150standard specifies a function 151.Fn tgamma 152for computing \(*G(x). 153This function is currently unimplimented in this library. | 147.Fa signgam . 148The 149.St -isoC-99 150standard specifies a function 151.Fn tgamma 152for computing \(*G(x). 153This function is currently unimplimented in this library. |