Hi, everyone.
I'm now using rsync command, and please tell me what is the wildcard for below looks like.
I want to chose dotfiles, such as
.ipod
.apple
but i don't want to chose
.
and
..
------------------
.*
doesn't work, of course.
Thanks,
Euler04 (2 Replies)
I am trying to split input that looks like
,2005-09-12 01:45:00.000000,2005-09-12 01:48:18.000000,
I want to split on the dot .
What I am using is ($ev_time,$rol)=split(/\./),$inputfile;
This does not recognize the dot as what I want to split on. (2 Replies)
Hi all,
What I want is that can we manage printing a text file on a Dot Matrix printer installed on a Linux machine and the printer should not take the normal A4 format, but should print only to the extent the text file has text in it. What happen usually is that when we give print comand to any... (0 Replies)
hiii, Help me out..i have a huge set of data stored in a file.This file has has 2 columns which is latitude & longitude of a region. Now i have a program which asks for the number of points & based on this number it asks the user to enter that latitude & longitude values which are in the same... (7 Replies)
I need a script that will allow me to rename all of my files in subdir /FilesIn
as follows:
From kumc_835_111200.RMT.dat to kumc_835_111200RMT.dat
kumc_835_111200.KMR.dat to kumc_835_111200KMR.dat
.................etc
How do I do that whithout doing a sed ... (10 Replies)
How can I rename a file with a . prefix?
I actually need to copy the file but the . seems to be very tough to do.
mv ./bla ../fa/la/.bla - doesn't work. I've tried all sorts of bracketing and that doesn't work.
Maybe the only way to do it would be to name the file _.bla then rename it... (19 Replies)
Discussion started by: scribling
19 Replies
LEARN ABOUT OSX
atan2l
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