catan(3M) Mathematical Library Functions catan(3M)NAME
catan, catanf, catanl - complex arc tangent functions
SYNOPSIS
cc [ flag... ] file... -lm [ library... ]
#include <complex.h>
double complex catan(double complex z);
float complex catanf(float complex z);
long double complex catanl(long double complex z);
DESCRIPTION
These functions compute the complex arc tangent of z, with branch cuts outside the interval [ -i, +++++i ] along the imaginary axis.
RETURN VALUES
These functions return the complex arc tangent value, in the range of a strip mathematically unbounded along the imaginary axis and in the
interval [ -/2, +/2 ] along the real axis.
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 |
+-----------------------------+-----------------------------+
SEE ALSO complex.h(3HEAD), ctan(3M), attributes(5), standards(5)SunOS 5.10 1 Sep 2002 catan(3M)
Check Out this Related Man Page
CASIN(3) BSD Library Functions Manual CASIN(3)NAME
casin -- complex inverse sine function
catan -- complex inverse tangent function
SYNOPSIS
#include <complex.h>
double complex
casin(double complex z);
long double complex
casinl(long double complex z);
float complex
casinf(float complex z);
double complex
catan(double complex z);
long double complex
catanl(long double complex z);
float complex
catanf(float complex z);
DESCRIPTION
casin(z) computes the inverse sine of the complex floating-point number z, with branch cuts outside the interval [-1, 1] on the real axis.
ctan(z) computes the inverse tangent of the complex floating-point number z, with branch cuts outside the interval [-i, i] on the imaginary
axis.
Both functions return values in a strip of the complex plane with unbounded imaginary part, and real part in the interval [-Pi/2, Pi/2].
NOTES
casin and catan are defined in terms of the complex inverse hyperbolic functions as follows:
casin(z) = -i * casinh(i*z),
catan(z) = -i * catanh(i*z).
SEE ALSO casinh(3)catanh(3)complex(3)STANDARDS
The casin() and catan() functions conform to ISO/IEC 9899:2011.
4th Berkeley Distribution December 11, 2006 4th Berkeley Distribution
Hi, i have a file like this:
A1
kdfjdljfdkljfdlf
A2
lfjdlfkjddkjf
A3
***no hit***
A4
ldjfldjfdk
A5
***no hit***
A6
jldfjdlfjdlkfjd
I want to remove the lines "***no hit*** and their above line to get an output file like this: (11 Replies)
Not my story, but interesting enough to be worth posting here IMHO. (Original is here)
The following is the 500-mile email story in the form it originally appeared, in a post to sage-members on Sun, 24 Nov 2002.:
From trey@sage.org Fri Nov 29 18:00:49 2002
Date: Sun, 24 Nov 2002 21:03:02... (3 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hi gurus,
I have a weird requirement. I need to convert the number to english lecture.
I have 1.2 ....19 numbers
I need to convert to first second third fourth, fifth, sixth...
Is there any way convert it using unix command?
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Hi,
Humorous UNIX Commands shows a fun way of using echo and dc to sort of obfuscate a string.
% echo 'sasb3135071790101768542287578439snlbxq'|dc
GET A LIFE!
I am just wanting to know if there is a way to sort of use dc and echo to print out an obfuscated/garbled string instead... (3 Replies)
Hi All,
Having recently started a new job, a Data Center Migration in fact I have been tasked with looking at some of the older Solaris boxes when I came across this little gem.
nismas# uname -a
SunOS nismas 5.5.1 Generic_103640-27 sun4u sparc SUNW,Ultra-1
nismas# uptime
10:37am up 2900... (2 Replies)
For any SunOS 5.XX release, it appears prior to the "login:" prompt (as if a "uname" command is run).
Would anyone know where that initial display of SunOS release comes from upon a remote login and how I can stop if from displaying?
Thank you (4 Replies)
I am trying to remove each line in which $2 is FP or RFP. I believe the below will remove one instance but not both. Thank you :).
file
12
123 FP
11
10 RFP
awk
awk -F'\t' '
$2 != "FP"' file
desired output
12
11 (6 Replies)
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Which Unix base OS have best performance for HOST virtualization?
I tested SmartOS but it needs another OS to connect remotely!
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I have this file:
>ID1
AA
>ID2
TTTTTT
>ID-3
AAAAAAAAA
>ID4
TTTTTTGGAGATCAGTAGCAGATGACAG-GGGGG-TGCACCCC
Add I am trying to use this script to output sequences longer than 15 characters:
sed -r '/^>/N;{/^.{,15}$/d}'
The desire output would be this:
>ID4... (8 Replies)
Hi,
I am having contents in a file like below,
cat testfile
rpool/swap
rpool/swap14
rpool/swap2
rpool/swap3
I want to sort the above contents like,
rpool/swap
rpool/swap2
rpool/swap3
rpool/swap14
I have tried in this way, (7 Replies)
Morning All
So, I am starting looking into the world of UNIX for a new job (luckily not my primary function!) and I am looking to get stared. Like anything I seem to learn best by trying things out first in an environment but I have a key question:
Currently I use Oracle VirtualBox, can... (8 Replies)