12-17-2012
Floating point numbers are a problem for all languages, because many non-integral numbers can not be represented precisely. The fact, that a certain number can be represented with a finite number of fractional digits in the decimal system does not mean, that they also have a finite number of fractional digits in a certain binary floating point representation. That's why you never should check for equality with floating point numbers, no matter what language you are using, because of the internal representation.
Commercial software uses fixed-point representations for this purpose or even plain integer variables.
This User Gave Thanks to hergp For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello:
I have the following perl script which is giving me trouble inside the second elsif statement. The purpose of the script is to go through a file and print out only those lines which contain pertinent information. The tricky part came when I realized that certain items actually spanned... (5 Replies)
Discussion started by: erichpowell
5 Replies
2. Shell Programming and Scripting
Hi,
I have a variable, $sername, and I would like to display this variable only if it *does not* contain either of these two tags: *DTI*FA* or *DIFF*FA*.
I think the syntax for my 'or' operator is off. The variable $sername is continuously changing in an outer loop (not shown), but at the... (4 Replies)
Discussion started by: goodbenito
4 Replies
3. Shell Programming and Scripting
Hi
What is the syntax for if statement using && and || operator?
if && ] ||
here its giving me an error to this if statement
any suggestion?? (2 Replies)
Discussion started by: Avi
2 Replies
4. Shell Programming and Scripting
awk -F '/' '{ if (($2!="30") print }' f.dat > date_mismatch.dat
The above command is giving the desired results
But I would want use Or in the above but it is returning the complete file
awk -F '/' '{ if ($2!="30"||$2!="31") print }' f.dat > date_mismatch.dat
Have tried the... (1 Reply)
Discussion started by: infernalhell
1 Replies
5. Shell Programming and Scripting
Hi,
I've tried searching through the forum but I've drawn a blank so i'm going to post here. I'm developing a number of checks on a CSV file, trying to find if any are greater than a max limit. I'm testing it by running it from a command line.
The file I'm testing has 8 records. When I... (3 Replies)
Discussion started by: Tmart
3 Replies
6. Shell Programming and Scripting
split($7,a," "); date = a; time = a
split(date,d,"/"); month = sprintf("%02d",d); day = sprintf("%02d",d); year = 2000 + d % 100
split(time,t,":"); hour=t; min=t
hour >= 12? { hour=hour-12; amPm=" PM" } : amPM=" AM"
hour == 0? hour=12
time=sprintf("%02d",hour)":"sprintf("%02d",min)amPm
... (4 Replies)
Discussion started by: Michael Stora
4 Replies
7. Shell Programming and Scripting
Hi
While calculating the sum of 6 and 7 fileds it is calculate the wrong value because of floating point like 7898778.10
awk '
BEGIN { FS = OFS = "|"
}
NR == 1 {
next
}
{ UX = $1 OFS $3 OFS $4 OFS $5
p1 +=$6
p2 +=$7
}
END { for(i in UX)
... (8 Replies)
Discussion started by: jagu
8 Replies
8. Shell Programming and Scripting
Hi folks,
I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex.
I have a bunch of update statements with all columns in a file which I need to convert into insert statements.
UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 Replies
9. Shell Programming and Scripting
Hello All,
I have developed a script which selects a particular filed from a file ,trims it,searches for a particular pattern and then mail it when found.
cat test_file.txt |sed -n '5,$p'|sed -e 's/ //g'|awk -F'|' '{if ($4 !="Alive") print $1,$2,$3,$4}' >> proc_not_alive.txt
It is... (4 Replies)
Discussion started by: karthik adiga
4 Replies
10. Shell Programming and Scripting
how can i use like operator in IF statement. Below is correct format, please guide
if ; then
CT_ACT_FILE_NAME=`echo FINACLE'
else
CT_ACT_FILE_NAME=`echo not listed'
fi
---------- Post updated at 04:58 PM ---------- Previous update was at 04:56 PM ----------
Please use CODE... (6 Replies)
Discussion started by: rizwan.shaukat
6 Replies
LEARN ABOUT MOJAVE
ttk::frame
ttk::frame(n) Tk Themed Widget ttk::frame(n)
__________________________________________________________________________________________________________________________________________________
NAME
ttk::frame - Simple container widget
SYNOPSIS
ttk::frame pathName ?options?
_________________________________________________________________
DESCRIPTION
A ttk::frame widget is a container, used to group other widgets together.
STANDARD OPTIONS
-class -cursor -takefocus
-style
See the ttk_widget manual entry for details on the standard options.
WIDGET-SPECIFIC OPTIONS
[-borderwidth borderWidth] The desired width of the widget border. Defaults to 0. [-relief relief] One of the standard Tk border styles:
flat, groove, raised, ridge, solid, or sunken. Defaults to flat. [-padding padding] Additional padding to include inside the border.
[-width width] If specified, the widget's requested width in pixels. [-height height] If specified, the widget's requested height in pix-
els.
WIDGET COMMAND
Supports the standard widget commands configure, cget, identify, instate, and state; see ttk::widget(n).
NOTES
Note that if the pack, grid, or other geometry managers are used to manage the children of the frame, by the GM's requested size will nor-
mally take precedence over the frame widget's -width and -height options. pack propagate and grid propagate can be used to change this.
SEE ALSO
ttk::widget(n), ttk::labelframe(n), frame(n)
KEYWORDS
widget, frame, container
Tk 8.5 ttk::frame(n)