## Linux and UNIX Man Pages

Test Your Knowledge in Computers #918
Difficulty: Medium
Unix time is a single signed number which increments every millisecond.
True or False?

# cprojl(3m) [opensolaris man page]

```cproj(3M)						  Mathematical Library Functions						 cproj(3M)

NAME
cproj, cprojf, cprojl - complex projection functions

SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <complex.h>

double complex cproj(double complex z);

float complex cprojf(float complex z);

long double complex cprojl(long double complex z);

DESCRIPTION
These functions compute a projection of z onto the Riemann sphere: z projects to z, except that all complex infinities (even those with one
infinite part and one NaN part) project to positive infinity on the real axis. If z has an infinite part, then cproj(z) is equivalent to:

INFINITY + I * copysign(0.0, cimag(z))

RETURN VALUES
These functions return the value of the projection onto the Riemann sphere.

ERRORS
No errors are defined.

ATTRIBUTES
See attributes(5) for descriptions of the following attributes:

+-----------------------------+-----------------------------+
|      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
+-----------------------------+-----------------------------+
|Interface Stability	     |Standard			   |
+-----------------------------+-----------------------------+
|MT-Level		     |MT-Safe			   |
+-----------------------------+-----------------------------+

carg(3M), cimag(3M), complex.h(3HEAD), conj(3M), creal(3M), attributes(5), standards(5)

SunOS 5.11							    12 Jul 2006 							 cproj(3M)```

## Check Out this Related Man Page

```cproj(3M)						  Mathematical Library Functions						 cproj(3M)

NAME
cproj, cprojf, cprojl - complex projection functions

SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <complex.h>

double complex cproj(double complex z);

float complex cprojf(float complex z);

long double complex cprojl(long double complex z);

DESCRIPTION
These functions compute a projection of z onto the Riemann sphere: z projects to z, except that all complex infinities (even those with one
infinite part and one NaN part) project to positive infinity on the real axis. If z has an infinite part, then cproj(z) is equivalent to:

INFINITY + I * copysign(0.0, cimag(z))

RETURN VALUES
These functions return the value of the projection onto the Riemann sphere.

ERRORS
No errors are defined.

ATTRIBUTES
See attributes(5) for descriptions of the following attributes:

+-----------------------------+-----------------------------+
|      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
+-----------------------------+-----------------------------+
|Interface Stability	     |Standard			   |
+-----------------------------+-----------------------------+
|MT-Level		     |MT-Safe			   |
+-----------------------------+-----------------------------+

carg(3M), cimag(3M), complex.h(3HEAD), conj(3M), creal(3M), attributes(5), standards(5)

SunOS 5.11							    12 Jul 2006 							 cproj(3M)```

## Trying to block signal

I have this code that doesnt do what it is suppose to do. It should block signal that I send while process is running. I press control+z while this process is running and it should be blocked but it isnt. When i press control+z it gives me this.... + Stopped When I change SIGTSP into SIGINT then...

## How to learn UNIX

First question is how do you learn UNIX on a home lab. I understand that HP-UX isn't free and neither is SCO Unix and they don't run on x86 based systems anyways. The choices I believe are going to be OpenSolaris and FreeBSD. My question is UNIX commands the same across the board so if I learn...

## solaris zones vs container..

kindly share what are difference b/w solaris zones and containers....

## What does this mean?

Hello all, I am a newbie in shell scripting. I want to know what does the below text means? 6.355u 1.679s 0:12.68 63.2% 0+0k 0+0io 0pf+0w I am getting this line (on terminal) after every successful execution of my script. Thanks in advance . . :) -MD

## Study UNIX Kernel

Hi all, I hope you are fine, I'd like study Os I tried a book like Silberschatz it's a good book but like other books it talks about the concepts abstractly and that's due to it try to encompass many concepts from many operating systems in GENERAL. i am not too much comfortable from these...

## Change directory for core file

Hi, Some of the process in th environment are producing a core file. These core files are produced by default in the directory from which they were launched. I want to change the default directory to say /tmp of that environment. I am using both Linux and Solaris, so will need the solution...

## Grep the 'not running' jobs and will send the update in mail with its name(job)

my request is: i have to create a script , which will grep the 'not running' jobs and will send the update in mail with its name(job) Scenario: logged in to machine abc went to particular path: cd /a/b/c then ./script1.sh status (script.sh is a script,whose status gives info about 10 jobs...

## Free Sun Blade 2k, Ultra 2, Ross Hyperstation 30, cards, memory- Baltimore, MD

Hi all, My home server was Solaris for quite a while- I started with an Ultra 2 about 20 years ago, ended with a Blade 2000- but I've transitioned to Linux and am not going back. I miss the Solaris experience a bit (but not the Oracle experience), besides running with modern and small and quiet...

## Identify problem with while getopts

can anyone spot a problem with the below: \$ \$ cat getopts.sh #!/bin/sh usage() { echo "myscript.sh local /tmp data.txt 600s -query" 1>&2; exit 1; } while...

## %memused is high

All I see cpu and memory usage are under control, only cache gets high upto 99% using sar -r command I did echo3 and cleaned the drop caches do we need to monitor this , why my application going high upto 99.8% memused in sar command , this is cache memory which is going high will this...

## Solaris 10 - password complexity not working

I have been trying to enable password complexity variables on Solaris 10 by editing the /etc/default/passwd file but none of my changes are taking effect (I'm still able to set passwords that violate the rules I am trying to implement). I've tried an O/S reboot after the changes but that had no...

## What is good?

Hello everyone, I am using centos, 1) solaris is free right? 2) I want to learn solaris and install it in a computer that I am mounting, I would like know what is strong in solaris and if do it is wise. I am programmer python, learning machine and programming in general,..any help thanks,..

## PHP Man Pages Now Available (Over 10,000)

Hello! Yesterday we added over 10,000 PHP man pages to our man page section. I've not yet got our unique and special recursive search feature working; but you can still access the PHP man pages directly by selecting PHP in the man sets drop down menu (left side) and then section 3 (right...

## Shopt -s histappend

What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file. # When the shell exits, append to the history file instead of overwriting it shopt -s histappend