08-05-2011
usage of atan
Hi All,
can anybody explain me the syntax and usage of "atan" command?
Thanks in advance.
10 More Discussions You Might Find Interesting
1. Programming
how can i monitor usages of CPU, Memory, Hard disk etc. under SUN Solaries
through a c program or java program
i want to store that data into database so i can show it graphically
thanks in advance (2 Replies)
Discussion started by: Gajanad Bihani
2 Replies
2. Programming
Please tell me solaris functions/api for getting following information
1- Function that tells how much memory used by current process
2- Function that tells how much memory used by all running processes
3- Function that tells how much CPU is used by current process
4- Function that tells how... (1 Reply)
Discussion started by: mansoorulhaq
1 Replies
3. UNIX for Advanced & Expert Users
Hi,
I can have only one instance of my script running at any point of time. So I have :
SCRIPT_NAME=$0
if ; then
echo "The process $0 is already running. Aborting the current instance of the job $0"
exit 1
fi
And in the last line of the script i had given exit 0
At times, though... (3 Replies)
Discussion started by: risshanth
3 Replies
4. HP-UX
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Discussion started by: alert0919
3 Replies
5. Solaris
Hi,
I want to monitor the current cpu usage, monitor usage , disk I/o and network utlization for solaris using SNMP.
I want the oids for above tasks.
can you please tell me that
Thank you (2 Replies)
Discussion started by: S_venkatesh
2 Replies
6. AIX
How to monitor the IBM AIX server for I/O usage, memory usage, CPU usage, network usage, storage usage? (3 Replies)
Discussion started by: laknar
3 Replies
7. Shell Programming and Scripting
Hi All
I am not able to understand the usage of d# in the below variable declaration.
FILE_LOC contains the directory path
And also help me to know about what will be saved in the variable j.
Thanks!!!
j=${d#${FILE_LOC}/} (2 Replies)
Discussion started by: mohanm
2 Replies
8. UNIX for Dummies Questions & Answers
Hi all,
Can you please tell me the command, with which one can know the amount of space a specific directory has used.
df -k . ---> Displays, the amount of space allocated, and used for a directory.
du -k <dir name> - gives me the memory used of all the files inside <dir>
But i... (2 Replies)
Discussion started by: abhisheksunkari
2 Replies
9. Shell Programming and Scripting
I recently came across this construct that i am not able to understand.
ex: cat $(grep -l 'HELLO' *)
the above command prints out the contents of the file if HELLO string is present in the file. I am not able to understand the usage of "$(" here.. can anybody help me understand this? $anything... (2 Replies)
Discussion started by: sreeharshasn
2 Replies
10. UNIX for Dummies Questions & Answers
Let's say i have 20 users logged on Server. How can I know how much memory percent used each of them is using with system time in each user? (2 Replies)
Discussion started by: roy1912
2 Replies
ATAN(3) BSD Library Functions Manual ATAN(3)
NAME
atan -- arc tangent function of one variable
SYNOPSIS
#include <math.h>
double
atan(double x);
long double
atanl(long double x);
float
atanf(float x);
DESCRIPTION
The atan() function computes the principal value of the arc tangent of x. The result is in the range [-pi/2, +pi/2].
SPECIAL VALUES
atan(+-0) returns +-0.
atan(+-infinity) returns +-pi/2
VECTOR OPERATIONS
If you need to apply the atan() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
give significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vatanf(vFloat x);
void vvatanf(float *y, const float *x, const int *n);
void vvatan(double *y, const double *x, const int *n);
SEE ALSO
acos(3), asin(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tan(3), tanh(3), math(3) The atan() function conforms to ISO/IEC 9899:2011.
BSD
December 11, 2006 BSD