I am having a strange issue. Below is the code snippet. If I print
which is a double I am getting 154 when I type cast that to
as
it is becoming 153. Not sure why casting get me different output. Also for another strange thing is if store the
into a double and then type cast it returning me 154.
Hi,
I am getting different output for grep depending which directory I am in.
The following is a transcript of my session, I am using egrep but have also used grep -E. The directory names have been changed for security:
$pwd
/dir1/dir2/dir3/dir4
$echo 000000 |egrep -v
$echo $?
1
$cd ..... (10 Replies)
I had a similar script in solaris and it had no problem. I wrote this one in freeBSD and it gave me strange output. Can anyone please tell me why? thanks a lot
#!/bin/sh
#This is a shell script that checks file system capacity mounted on /home directory
#If file system is over 90% capacity,... (1 Reply)
Hi
At OK> prompt, I have run the boot -s command
After system is coming on to multiuser state, when I run the " who -r" command, I get the following message
# who -r
run-level Oct 17 03:48 last=
Means I dont see "S" after run-level keyword. Could any one... (2 Replies)
I was reviewing yesterday's sar file and came across this strange output! What in the world? Any reason why there's output like that?
SunOS unixbox 5.10 Generic_144488-07 sun4v sparc SUNW,T5240 Solaris
00:00:58 device %busy avque r+w/s blks/s avwait avserv
11:20:01 ... (4 Replies)
Hi all,
After deleting some large log files on solaris 9 machine I can see strange df output shows below
/dev/vx/dsk/rootvol 45G 16384E 50G 39879076698694% /
I thought it will back to normal once I restart it but did not. I have seen in sunsolve article 6362734 that "Solaris 8... (0 Replies)
Hi,
I using tcl script to perform certain conditions. Part of the results should have average . I couldn't figure out what 's the cause as the result of the average is Zero.
Example of the case????
#!/usr/bin/tclsh
set counter 500
set total 1000
puts "Total num: $total \n"
puts ... (3 Replies)
Can someone please explain why I get two outputs with the du command? The first one gave me one. I also didn't ask for the second directory so why did it give that directory?
$ du -h "/media/Part 1/Desktop/playlist"
775M /media/Part 1/Desktop/playlist
$ du -h "/media/Part... (1 Reply)
Can someone please explain this to me?
auser:x:500:500:Anne User:/home/auser:/bin/sh
buser:x:501:501:Bob User:/home/buser:/bin/bash
I'm used to it looking like this. What is the difference between the first name and second name? In the first case I had to use the first name to change my... (3 Replies)
How can I prevent find from outputting the directory name /home/xxxxxxxx/Backup/.system (which isn't even "other writable"?
I am trying to search for files that are "world writable" on a shared web host using the find statement, and I want to prevent find from creating an error (because the of... (4 Replies)
Hi,
Kindly help me to understand the behavior or logic of the below shell command
$ echo $!#
echo $echo $
$
$ echo !$#
echo $#
0
I am using GNU bash, version 3.2.25(1)-release (2 Replies)
Discussion started by: royalibrahim
2 Replies
LEARN ABOUT FREEBSD
expf
EXP(3) BSD Library Functions Manual EXP(3)NAME
exp, expf, expl, exp2, exp2f, exp2l, expm1, expm1f, expm1l, pow, powf -- exponential and power functions
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
exp(double x);
float
expf(float x);
long double
expl(long double x);
double
exp2(double x);
float
exp2f(float x);
long double
exp2l(long double x);
double
expm1(double x);
float
expm1f(float x);
long double
expm1l(long double x);
double
pow(double x, double y);
float
powf(float x, float y);
DESCRIPTION
The exp(), expf(), and expl() functions compute the base e exponential value of the given argument x.
The exp2(), exp2f(), and exp2l() functions compute the base 2 exponential of the given argument x.
The expm1(), expm1f(), and the expm1l() functions compute the value exp(x)-1 accurately even for tiny argument x.
The pow() and the powf() functions compute the value of x to the exponent y.
ERROR (due to Roundoff etc.)
The values of exp(0), expm1(0), exp2(integer), and pow(integer, integer) are exact provided that they are representable. Otherwise the error
in these functions is generally below one ulp.
RETURN VALUES
These functions will return the appropriate computation unless an error occurs or an argument is out of range. The functions pow(x, y) and
powf(x, y) raise an invalid exception and return an NaN if x < 0 and y is not an integer.
NOTES
The function pow(x, 0) returns x**0 = 1 for all x including x = 0, infinity, and NaN . Previous implementations of pow may have defined x**0
to be undefined in some or all of these cases. Here are reasons for returning x**0 = 1 always:
1. Any program that already tests whether x is zero (or infinite or NaN) before computing x**0 cannot care whether 0**0 = 1 or not. Any
program that depends upon 0**0 to be invalid is dubious anyway since that expression's meaning and, if invalid, its consequences vary
from one computer system to another.
2. Some Algebra texts (e.g. Sigler's) define x**0 = 1 for all x, including x = 0. This is compatible with the convention that accepts
a[0] as the value of polynomial
p(x) = a[0]*x**0 + a[1]*x**1 + a[2]*x**2 +...+ a[n]*x**n
at x = 0 rather than reject a[0]*0**0 as invalid.
3. Analysts will accept 0**0 = 1 despite that x**y can approach anything or nothing as x and y approach 0 independently. The reason for
setting 0**0 = 1 anyway is this:
If x(z) and y(z) are any functions analytic (expandable in power series) in z around z = 0, and if there x(0) = y(0) = 0, then
x(z)**y(z) -> 1 as z -> 0.
4. If 0**0 = 1, then infinity**0 = 1/0**0 = 1 too; and then NaN**0 = 1 too because x**0 = 1 for all finite and infinite x, i.e., inde-
pendently of x.
SEE ALSO fenv(3), ldexp(3), log(3), math(3)STANDARDS
These functions conform to ISO/IEC 9899:1999 (``ISO C99'').
BSD June 3, 2013 BSD