All,
We receive a file with a large no of records (records can vary) and we have to split it into two files based on another file. e.g.
File1:
UHDR 2008112
"25187","00000022","00",21-APR-1991,"" ,"D",-000000519,+0000000000,"C", ,+000000000,+000000000,000000000,"2","" ,21-APR-1991... (7 Replies)
Hi,
I have written a c program to find cos() of a value , its not working, I am getting value of "val " as 0000.
#include<stdio.h>
#include<math.h>
main()
{
float val;
val = cosf( 1.570796);
printf("\nval = %f",val);
} (9 Replies)
Actually I got a list of file end with *.txt
I want to use the same command apply to all the *.txt
Thus I try to find out the fastest way to write those same command in a script and then want to let them run automatics.
For example:
I got the file below:
file1.txt
file2.txt
file3.txt... (4 Replies)
Hi Experts,
I am adding a column of numbers with awk , however not getting correct output:
# awk '{sum+=$1} END {print sum}' datafile
2.15291e+06
How can I getthe output like : 2152910
Thank you..
# awk '{sum+=$1} END {print sum}' datafile
2.15079e+06 (3 Replies)
Hi
I have many problems with a script. I have a script that formats a text file but always prints the same error when i try to execute it
The code is that:
{
if (NF==17){
print $0
}else{
fields=NF;
all=$0;
while... (2 Replies)
Hi,
I have a situation to compare one file, say file1.txt with a set of files in directory.The directory contains more than 100 files.
To be more precise, the requirement is to compare the first field of file1.txt with the first field in all the files in the directory.The files in the... (10 Replies)
Hello experts,
I'm stuck with this script for three days now. Here's what i need.
I need to split a large delimited (,) file into 2 files based on the value present in the last field.
Samp: Something.csv
bca,adc,asdf,123,12C
bca,adc,asdf,123,13C
def,adc,asdf,123,12A
I need this split... (6 Replies)
Good evening, Im newbie at unix specially with awk
From an scheduler program called Autosys i want to extract some data reading an inputfile that comprises jobs names, then formating the output to columns for example
1.
This is the inputfile:
$ more MapaRep.txt
ds_extra_nikira_usuarios... (18 Replies)
Discussion started by: alexcol
18 Replies
LEARN ABOUT OSX
atan2
ATAN2(3) BSD Library Functions Manual ATAN2(3)NAME
atan2 -- arc tangent function of two variables
SYNOPSIS
#include <math.h>
double
atan2(double y, double x);
long double
atan2l(long double y, long double x);
float
atan2f(float y, float x);
DESCRIPTION
The atan2() function computes the principal value of the arc tangent of y/x, using the signs of both arguments to determine the quadrant of
the return value.
SPECIAL VALUES
atan2(+-0, -0) returns +-pi.
atan2(+-0, +0) returns +-0.
atan2(+-0, x) returns +-pi for x < 0.
atan2(+-0, x) returns +-0 for x > 0.
atan2(y, +-0) returns +pi/2 for y > 0.
atan2(y, +-0) returns -pi/2 for y < 0.
atan2(+-y, -infinity) returns +-pi for finite y > 0.
atan2(+-y, +infinity) returns +-0 for finite y > 0.
atan2(+-infinity, x) returns +-pi/2 for finite x.
atan2(+-infinity, -infinity) returns +-3*pi/4.
atan2(+-infinity, +infinity) returns +-pi/4.
NOTES
The atan2() function is used mostly to convert from rectangular (x,y) to polar (r,theta) coordinates that must satisfy x = r*cos theta and y
= r*sin theta. In general, conversions to polar coordinates should be computed thus:
r := hypot(x,y); ... := sqrt(x*x+y*y)
theta := atan2(y,x).
VECTOR OPERATIONS
If you need to apply the atan2() 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 atan2f(vFloat y, vFloat x);
void vvatan2f(float *z, const float *y, const float *x, const int *n);
void vvatan2(double *z, const double *y, const double *x, const int *n);
SEE ALSO acos(3), asin(3), atan(3), cos(3), cosh(3), sin(3), sinh(3), tan(3), tanh(3), math(3),
STANDARDS
The atan2() function conforms to ISO/IEC 9899:2011.
BSD December 11, 2006 BSD