projects / thirdparty / man-pages.git / blame
| Commit | Line | Data |
|---|---|---|
| fea681da | 1 | .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de) |
| 2297bf0e | 2 | .\" |
| 38f20bb9 | 3 | .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE) |
| fea681da | 4 | .\" Distributed under GPL |
| 38f20bb9 | 5 | .\" %%%LICENSE_END |
| fea681da | 6 | .\" |
| 4b8c67d9 | 7 | .TH CLOG2 3 2017-09-15 "" "Linux Programmer's Manual" |
| fea681da MK |
8 | .SH NAME |
| 9 | clog2, clog2f, clog2l \- base-2 logarithm of a complex number | |
| 10 | .SH SYNOPSIS | |
| 11 | .B #include <complex.h> | |
| 68e4db0a | 12 | .PP |
| fea681da | 13 | .BI "double complex clog2(double complex " z ); |
| d39541ec | 14 | .br |
| fea681da | 15 | .BI "float complex clog2f(float complex " z ); |
| d39541ec | 16 | .br |
| fea681da | 17 | .BI "long double complex clog2l(long double complex " z ); |
| 68e4db0a | 18 | .\" .PP |
| 20c58d70 | 19 | .\" Link with \fI\-lm\fP. |
| fea681da | 20 | .SH DESCRIPTION |
| c13182ef | 21 | The call |
| 988517ae MK |
22 | .I clog2(z) |
| 23 | is equivalent to | |
| 24 | .IR clog(z)/log(2) . | |
| 847e0d88 | 25 | .PP |
| c13182ef | 26 | The other functions perform the same task for |
| 988517ae | 27 | .I float |
| c13182ef | 28 | and |
| 988517ae | 29 | .IR "long double" . |
| 847e0d88 | 30 | .PP |
| c13182ef MK |
31 | Note that |
| 32 | .I z | |
| 33 | close to zero will cause an overflow. | |
| 47297adb | 34 | .SH CONFORMING TO |
| 68e1685c | 35 | These function names are reserved for future use in C99. |
| fea681da | 36 | .SH AVAILABILITY |
| f3d2d8bd | 37 | Not yet in glibc, as at version 2.19. |
| fea681da | 38 | .\" But reserved in NAMESPACE. |
| 47297adb | 39 | .SH SEE ALSO |
| fea681da MK |
40 | .BR cabs (3), |
| 41 | .BR cexp (3), | |
| 42 | .BR clog (3), | |
| 43 | .BR clog10 (3), | |
| a8bda636 | 44 | .BR complex (7) |