The Lounge What is on Your Mind? The Dark Years of UNIX (2003 - 2011) | A Decade Lost to Legal Battles | YouTube Video Post 303036631 by Neo on Friday 5th of July 2019 07:38:32 AM
Quote:
Originally Posted by drl
Hi, Neo.

Thanks, I like it. In the last frame, There were no winners ..., the type size was small and went by too quickly for me to be able to read it in one viewing ... cheers, drl
FWIW: Here is that "small text" from the last frame:

Quote:
"There were no winners in the historical protracted
legal battles over the UNIX operating system
except for other computer operating systems.
Arguably, Microsoft was the “winner” in this war."
This User Gave Thanks to Neo For This Post:
 
Test Your Knowledge in Computers #325
Difficulty: Medium
Early RAM was not directly seated onto the motherboard so it could easily changed and upgraded.
True or False?

8 More Discussions You Might Find Interesting

1. What is on Your Mind?

Cool YouTube Video: Here Comes Another Bubble - The Richter Scales!

You will like this :) fi4fzvQ6I-o (2 Replies)
Discussion started by: Neo
2 Replies

2. UNIX for Dummies Questions & Answers

Unix Command to separate this years files and last years?

Hello - I have a folder that contains files from 2003 till 2010. I am trying to figure out a command that would seperate each years file and show me a count? Even if i can find a command that would give me year by year count, thats good enough too. Thanks (8 Replies)
Discussion started by: DallasT
8 Replies

3. Windows & DOS: Issues & Discussions

Microsoft Powerpoint 2003 stops working after 12 April 2011 Microsoft Updates

For the benefit of the community this is a widespread worldwide problem affecting multiple versions of Microsoft Windows. Powerpoint erroneously reports Powerpoint presentation damaged and then often hangs. Until Microsoft sort this out, try removing Powerpoint security update KB 2464588... (0 Replies)
Discussion started by: methyl
0 Replies

4. OS X (Apple)

Video Contact Sheet on Lion from movies downloaded youtube MP4

Hi I am running Lion with latest patches > uname -a Darwin wger.local 11.2.0 Darwin Kernel Version 11.2.0: Tue Aug 9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64 x86_64 Installed mplayer, ffmpeg, gnu-getopt and ImageMagick through brew. I am unable to generate Video Contact... (0 Replies)
Discussion started by: slashdotweenie
0 Replies

5. What is on Your Mind?

Mad World Remix of Moby Video (Are You Lost In The World Like Me)

This is an excellent video comment on modern society and the remix is good too: https://www.youtube.com/watch?v=5DU1B_XkyIk 5DU1B_XkyIk Watch the video above and post your comments. (3 Replies)
Discussion started by: Neo
3 Replies

6. What is on Your Mind?

Top 5 Roadblocks to a Secure Cyberspace in 2019 | YouTube Video

Here is a shout-out to wisecracker, who selected the sound track for this new video: Top 5 Roadblocks to a Secure Cyberspace in 2019 https://youtu.be/2rXo_ywM-NQ (7 Replies)
Discussion started by: Neo
7 Replies

7. What is on Your Mind?

The Great History of UNIX (1969-1999) | 30 Years of UNIX History | YouTube Video

I am pleased to announce this new video in 1080 HD for UNIX lovers honoring thirty years of UNIX history spanning from 1969 to 1999 presented in 150 seconds (two and a half minutes) in 1080 HD, celebrating the 50th anniversary of UNIX. The Great History of UNIX (1969-1999) | 30 Years of UNIX... (8 Replies)
Discussion started by: Neo
8 Replies

8. What is on Your Mind?

YouTube: Forum Moderation @UNIX.com | The UNIX and Linux Forums

Forum Moderation @UNIX.com | The UNIX and Linux Forums https://youtu.be/WGwgibE4Rq0 Also note: In the video I mentioned removing legacy menu items in the ModCP which are unused. I have already "CSS'ed out" the unused menu items: ... (0 Replies)
Discussion started by: Neo
0 Replies
math::fuzzy(n)							 Tcl Math Library						    math::fuzzy(n)

__________________________________________________________________________________________________________________________________________________

NAME
math::fuzzy - Fuzzy comparison of floating-point numbers SYNOPSIS
package require Tcl ?8.3? package require math::fuzzy ?0.2? ::math::fuzzy::teq value1 value2 ::math::fuzzy::tne value1 value2 ::math::fuzzy::tge value1 value2 ::math::fuzzy::tle value1 value2 ::math::fuzzy::tlt value1 value2 ::math::fuzzy::tgt value1 value2 ::math::fuzzy::tfloor value ::math::fuzzy::tceil value ::math::fuzzy::tround value ::math::fuzzy::troundn value ndigits _________________________________________________________________ DESCRIPTION
The package Fuzzy is meant to solve common problems with floating-point numbers in a systematic way: o Comparing two numbers that are "supposed" to be identical, like 1.0 and 2.1/(1.2+0.9) is not guaranteed to give the intuitive result. o Rounding a number that is halfway two integer numbers can cause strange errors, like int(100.0*2.8) != 28 but 27 The Fuzzy package is meant to help sorting out this type of problems by defining "fuzzy" comparison procedures for floating-point numbers. It does so by allowing for a small margin that is determined automatically - the margin is three times the "epsilon" value, that is three times the smallest number eps such that 1.0 and 1.0+$eps canbe distinguished. In Tcl, which uses double precision floating-point numbers, this is typically 1.1e-16. PROCEDURES
Effectively the package provides the following procedures: ::math::fuzzy::teq value1 value2 Compares two floating-point numbers and returns 1 if their values fall within a small range. Otherwise it returns 0. ::math::fuzzy::tne value1 value2 Returns the negation, that is, if the difference is larger than the margin, it returns 1. ::math::fuzzy::tge value1 value2 Compares two floating-point numbers and returns 1 if their values either fall within a small range or if the first number is larger than the second. Otherwise it returns 0. ::math::fuzzy::tle value1 value2 Returns 1 if the two numbers are equal according to [teq] or if the first is smaller than the second. ::math::fuzzy::tlt value1 value2 Returns the opposite of [tge]. ::math::fuzzy::tgt value1 value2 Returns the opposite of [tle]. ::math::fuzzy::tfloor value Returns the integer number that is lower or equal to the given floating-point number, within a well-defined tolerance. ::math::fuzzy::tceil value Returns the integer number that is greater or equal to the given floating-point number, within a well-defined tolerance. ::math::fuzzy::tround value Rounds the floating-point number off. ::math::fuzzy::troundn value ndigits Rounds the floating-point number off to the specified number of decimals (Pro memorie). Usage: if { [teq $x $y] } { puts "x == y" } if { [tne $x $y] } { puts "x != y" } if { [tge $x $y] } { puts "x >= y" } if { [tgt $x $y] } { puts "x > y" } if { [tlt $x $y] } { puts "x < y" } if { [tle $x $y] } { puts "x <= y" } set fx [tfloor $x] set fc [tceil $x] set rounded [tround $x] set roundn [troundn $x $nodigits] TEST CASES
The problems that can occur with floating-point numbers are illustrated by the test cases in the file "fuzzy.test": o Several test case use the ordinary comparisons, and they fail invariably to produce understandable results o One test case uses [expr] without braces ({ and }). It too fails. The conclusion from this is that any expression should be surrounded by braces, because otherwise very awkward things can happen if you need accuracy. Furthermore, accuracy and understandable results are enhanced by using these "tolerant" or fuzzy comparisons. Note that besides the Tcl-only package, there is also a C-based version. REFERENCES
Original implementation in Fortran by dr. H.D. Knoble (Penn State University). P. E. Hagerty, "More on Fuzzy Floor and Ceiling," APL QUOTE QUAD 8(4):20-24, June 1978. Note that TFLOOR=FL5 took five years of refereed evolution (publication). L. M. Breed, "Definitions for Fuzzy Floor and Ceiling", APL QUOTE QUAD 8(3):16-23, March 1978. D. Knuth, Art of Computer Programming, Vol. 1, Problem 1.2.4-5. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category math :: fuzzy of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
floating-point, math, rounding CATEGORY
Mathematics math 0.2 math::fuzzy(n)

Featured Tech Videos

All times are GMT -4. The time now is 04:56 PM.
Unix & Linux Forums Content Copyright 1993-2019. All Rights Reserved.
Privacy Policy