## Linux and UNIX Man Pages

Test Your Knowledge in Computers #637
Difficulty: Easy
As of January 2017, Apple's App Store had over 2.2 million apps for the iPhone.
True or False?

# ctan(3) [redhat man page]

```CTAN(3)                                                      Linux Programmer's Manual                                                     CTAN(3)

NAME
ctan, ctanf, ctanl - complex tangent function

SYNOPSIS
#include <complex.h>

double complex ctan(double complex z);
float complex ctanf(float complex z);
long double complex ctanl(long double complex z);

DESCRIPTION
These functions calculate the complex tangent of z.

The complex tangent function is defined as:

ctan(z) = csin(z) / ccos(z)

VERSIONS
These functions first appeared in glibc in version 2.1.

ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).

+-------------------------+---------------+---------+
|Interface                | Attribute     | Value   |
+-------------------------+---------------+---------+
|ctan(), ctanf(), ctanl() | Thread safety | MT-Safe |
+-------------------------+---------------+---------+

CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.

cabs(3), catan(3), ccos(3), csin(3), complex(7)

COLOPHON
This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the

2017-09-15                                                             CTAN(3)```

## Check Out this Related Man Page

```CTAN(3) 						     Linux Programmer's Manual							   CTAN(3)

NAME
ctan, ctanf, ctanl - complex tangent function

SYNOPSIS
#include <complex.h>

double complex ctan(double complex z);
float complex ctanf(float complex z);
long double complex ctanl(long double complex z);

DESCRIPTION
These functions calculate the complex tangent of z.

The complex tangent function is defined as:

ctan(z) = csin(z) / ccos(z)

VERSIONS
These functions first appeared in glibc in version 2.1.

ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).

+-------------------------+---------------+---------+
|Interface		 | Attribute	 | Value   |
+-------------------------+---------------+---------+
|ctan(), ctanf(), ctanl() | Thread safety | MT-Safe |
+-------------------------+---------------+---------+

CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.

cabs(3), catan(3), ccos(3), csin(3), complex(7)

COLOPHON
This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the

2017-09-15								   CTAN(3)```

## windows on an SGI Octane/IRIX 6.5

I have an SGI Octane. Can I run Windows XP Pro on it?I would like to use SolidWorks and Catia V5, as well as regular productivity software, on this hardware. I have been told that It is very good for design work. Though it is dated it apparently still has some use out of it. I am just trying to...

## Rectangle is flickering while dragging on screen with xlib

Hi, this is my first post here. I wanto make a screencasting program. I want to make a screen part selection to grab coordinates of the screen location. I found a nice prototype #include <X11/Xlib.h> //#include <X11/Xresource.h> #include <stdlib.h> #include <stdio.h> #include...