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 | .\" |
| c73595c2 | 7 | .TH CABS 3 2015-04-19 "" "Linux Programmer's Manual" |
| fea681da | 8 | .SH NAME |
| c13182ef | 9 | cabs, cabsf, cabsl \- absolute value of a complex number |
| fea681da MK |
10 | .SH SYNOPSIS |
| 11 | .B #include <complex.h> | |
| 12 | .sp | |
| 13 | .BI "double cabs(double complex " z ); | |
| d39541ec | 14 | .br |
| fea681da | 15 | .BI "float cabsf(float complex " z ); |
| d39541ec | 16 | .br |
| fea681da MK |
17 | .BI "long double cabsl(long double complex " z ); |
| 18 | .sp | |
| 20c58d70 | 19 | Link with \fI\-lm\fP. |
| fea681da | 20 | .SH DESCRIPTION |
| 5600f73a | 21 | These functions return the absolute value of the complex number |
| daac0b39 | 22 | .IR z . |
| ca7b3c18 | 23 | The result is a real number. |
| f0d7ce1d MK |
24 | .SH VERSIONS |
| 25 | These functions first appeared in glibc in version 2.1. | |
| 1c4f38c6 MS |
26 | .SH ATTRIBUTES |
| 27 | For an explanation of the terms used in this section, see | |
| 28 | .BR attributes (7). | |
| 29 | .TS | |
| 30 | allbox; | |
| 31 | lbw24 lb lb | |
| 32 | l l l. | |
| 33 | Interface Attribute Value | |
| 34 | T{ | |
| 35 | .BR cabs (), | |
| 36 | .BR cabsf (), | |
| 37 | .BR cabsl () | |
| 38 | T} Thread safety MT-Safe | |
| 39 | .TE | |
| 47297adb | 40 | .SH CONFORMING TO |
| 9a74e018 | 41 | C99, POSIX.1-2001, POSIX.1-2008. |
| 2b2581ee | 42 | .SH NOTES |
| daac0b39 MK |
43 | The function is actually an alias for |
| 44 | .I "hypot(a,\ b)" | |
| 45 | (or, equivalently, | |
| 46 | .IR "sqrt(a*a\ +\ b*b)" ). | |
| 47297adb | 47 | .SH SEE ALSO |
| fea681da MK |
48 | .BR abs (3), |
| 49 | .BR cimag (3), | |
| 50 | .BR hypot (3), | |
| a8bda636 | 51 | .BR complex (7) |