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Evaluating a BASIC Approach to Sensor Network Node Programming
Evaluating A BASIC Approach to Sensor Network Node Programming J. Scott Miller Peter A. Dinda Robert P. Dick [email protected] [email protected] [email protected] Northwestern University Northwestern University University of Michigan Abstract 1 Introduction Sensor networks have the potential to empower domain Wireless sensor networks (WSNs) can be viewed as experts from a wide range of fields. However, presently they general purpose distributed computing platforms defined by are notoriously difficult for these domain experts to program, their spatial presence and an emphasis on environment mon- even though their applications are often conceptually simple. itoring. The most prominent applications of sensor networks We address this problem by applying the BASIC program- have thus far included monitoring applications with a variety ming language to sensor networks and evaluating its effec- of requirements, although WSNs need not be limited to these tiveness. BASIC has proven highly successful in the past in tasks. While WSNs are currently of great research interest, it allowing novices to write useful programs on home comput- is ultimately communities and users outside of these areas— ers. Our contributions include a user study evaluating how application domain experts—that have the most to gain from well novice (no programming experience) and intermediate the functionality that WSNs can provide. We focus on ap- (some programming experience) users can accomplish sim- plication domain experts who are programming novices and ple sensor network tasks in BASIC and in TinyScript (a prin- not WSN experts. Our goal is to make the development of cipally event-driven high-level language for node-oriented WSN applications by such individuals and groups tractable programming) and an evaluation of power consumption is- and, ideally, straightforward. -
CAS (Computer Algebra System) Mathematica
CAS (Computer Algebra System) Mathematica- UML students can download a copy for free as part of the UML site license; see the course website for details From: Wikipedia 2/9/2014 A computer algebra system (CAS) is a software program that allows [one] to compute with mathematical expressions in a way which is similar to the traditional handwritten computations of the mathematicians and other scientists. The main ones are Axiom, Magma, Maple, Mathematica and Sage (the latter includes several computer algebras systems, such as Macsyma and SymPy). Computer algebra systems began to appear in the 1960s, and evolved out of two quite different sources—the requirements of theoretical physicists and research into artificial intelligence. A prime example for the first development was the pioneering work conducted by the later Nobel Prize laureate in physics Martin Veltman, who designed a program for symbolic mathematics, especially High Energy Physics, called Schoonschip (Dutch for "clean ship") in 1963. Using LISP as the programming basis, Carl Engelman created MATHLAB in 1964 at MITRE within an artificial intelligence research environment. Later MATHLAB was made available to users on PDP-6 and PDP-10 Systems running TOPS-10 or TENEX in universities. Today it can still be used on SIMH-Emulations of the PDP-10. MATHLAB ("mathematical laboratory") should not be confused with MATLAB ("matrix laboratory") which is a system for numerical computation built 15 years later at the University of New Mexico, accidentally named rather similarly. The first popular computer algebra systems were muMATH, Reduce, Derive (based on muMATH), and Macsyma; a popular copyleft version of Macsyma called Maxima is actively being maintained. -
Computer Supplement #19 ***********************
THE CRYPTOGRAM Summer 1994 *********************** COMPUTER SUPPLEMENT #19 *********************** In this issue: PATTERN SEARCHING BY COMPUTER | D MELIORA describes a method and gives a Pascal program to perform pattern word searching. SWAGMAN | BOATTAIL has some help for solving basic transposition ciphers like SWAG- MAN, and includes his Cipher library. INTERNET MAILING LIST | Three of the Krewe have started an electronic mailing list to help in solving cryptograms. REVIEWS | DAEDALUS has recommendations for three books and a software package. GW-BASIC CRACKING | A program to decrypt protected GW-BASIC programs. HIGH PRECISION BASIC | Details about a dialect of BASIC that handles large numbers with ease. Plus: News and notes for computerists interested in cryptography, and cryptographers in- terested in computers. Published in association with the American Cryptogram Association INTRODUCTORY MATERIAL The ACA and Your Computer (1p). Background on the ACA for computerists. (As printed in ACA and You, 1988 edition; [Also on Issue Disk #11] Using Your Home Computer (1p). Ciphering at the ACA level with a computer. (As printed in ACA and You, 1988 edition). Frequently Asked Questions (approx. 20p) with answers, from the Usenet newsgroup sci.crypt. REFERENCE MATERIAL BASICBUGS - Bugs and errors in GW-BASIC (1p). [Also on Issue Disk #11]. BBSFILES - List of filenames and descriptions of cryptographic files available on the ACA BBS (files also available on disk via mail). BIBLIOG | A bibliography of computer magazine articles and books dealing with cryptography. (Updated August 89). [available on Issue Disk #11]. CRYPTOSUB - Complete listing of Cryptographic Substitution Program as published by PHOENIX in sections in The Cryptogram 1983{1985. -
N.Gunasekaran MCA.,B.Ed, PG Asst in Computer Science
www.Padasalai.Net www.TrbTnpsc.com SrinivaSa Matric Hr.Sec.ScHool KollidaM +2 coMputer Science centum q&a Name : ------------------------------------------------ STD : 12th STD Subject : Computer Science www.Padasalai.NetSchool : Srinivasa Matric Hr.Sec.School, Kollidam, Nagai Dt. Prepared by N.Gunasekaran MCA., B.Ed., PG Asst in Computer Science http://www.trbtnpsc.com/2013/07/latest-12th-study-materials-2013.html www.Padasalai.Net www.TrbTnpsc.com Blue print cHapterS queStionS 1M 2M 5M total MarKS voluMe – i ( cHapterS 1 to 9) 1 to 5 13 9 2 2 23 6 11 7 2 2 21 7 12 9 2 1 18 8 7 5 2 ----- 9 9 7 5 2 ----- 9 SuB total 50 35 10 5 80 voluMe – ii ( cHapterS 1 to 12) 1 3 2 1 ----- 4 2 7 4 3 ----- 10 3 7 5 1 1 12 4 6 4 1 1 11 5 5 3 2 ----- 7 6 8 6 2 ----- 10 7 5 3 1 1 10 8 6 4 1 1 11 9 5 3 1 1 10 10 to 12 8 6 2 ----- 10 SuB total 60 40 15 5 95 total MarKS 110 75 25 10 175 ( vol-1 and vol-ii) www.Padasalai.NetNote: i ) Maximum Marks: 150 but Question paper has 175 marks* ii) There are 2 questions in five marks (output and error) in the question paper from Chapter 7 to 9 of Volume-II. GENERAL INSTRUCTIONS FOR STUDENTS:- Part-I: Choose the most suitable answer from the given four alternatives and circle the correct (any one) option like a or b or c or d in the given OMR sheet. -
Ipad Educational Apps This List of Apps Was Compiled by the Following Individuals on Behalf of Innovative Educator Consulting: Naomi Harm Jenna Linskens Tim Nielsen
iPad Educational Apps This list of apps was compiled by the following individuals on behalf of Innovative Educator Consulting: Naomi Harm Jenna Linskens Tim Nielsen INNOVATIVE 295 South Marina Drive Brownsville, MN 55919 Home: (507) 750-0506 Cell: (608) 386-2018 EDUCATOR Email: [email protected] Website: http://naomiharm.org CONSULTING Inspired Technology Leadership to Transform Teaching & Learning CONTENTS Art ............................................................................................................... 3 Creativity and Digital Production ................................................................. 5 eBook Applications .................................................................................... 13 Foreign Language ....................................................................................... 22 Music ........................................................................................................ 25 PE / Health ................................................................................................ 27 Special Needs ............................................................................................ 29 STEM - General .......................................................................................... 47 STEM - Science ........................................................................................... 48 STEM - Technology ..................................................................................... 51 STEM - Engineering ................................................................................... -
The People Who Invented the Internet Source: Wikipedia's History of the Internet
The People Who Invented the Internet Source: Wikipedia's History of the Internet PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Sat, 22 Sep 2012 02:49:54 UTC Contents Articles History of the Internet 1 Barry Appelman 26 Paul Baran 28 Vint Cerf 33 Danny Cohen (engineer) 41 David D. Clark 44 Steve Crocker 45 Donald Davies 47 Douglas Engelbart 49 Charles M. Herzfeld 56 Internet Engineering Task Force 58 Bob Kahn 61 Peter T. Kirstein 65 Leonard Kleinrock 66 John Klensin 70 J. C. R. Licklider 71 Jon Postel 77 Louis Pouzin 80 Lawrence Roberts (scientist) 81 John Romkey 84 Ivan Sutherland 85 Robert Taylor (computer scientist) 89 Ray Tomlinson 92 Oleg Vishnepolsky 94 Phil Zimmermann 96 References Article Sources and Contributors 99 Image Sources, Licenses and Contributors 102 Article Licenses License 103 History of the Internet 1 History of the Internet The history of the Internet began with the development of electronic computers in the 1950s. This began with point-to-point communication between mainframe computers and terminals, expanded to point-to-point connections between computers and then early research into packet switching. Packet switched networks such as ARPANET, Mark I at NPL in the UK, CYCLADES, Merit Network, Tymnet, and Telenet, were developed in the late 1960s and early 1970s using a variety of protocols. The ARPANET in particular led to the development of protocols for internetworking, where multiple separate networks could be joined together into a network of networks. In 1982 the Internet Protocol Suite (TCP/IP) was standardized and the concept of a world-wide network of fully interconnected TCP/IP networks called the Internet was introduced. -
SMT Solving in a Nutshell
SAT and SMT Solving in a Nutshell Erika Abrah´ am´ RWTH Aachen University, Germany LuFG Theory of Hybrid Systems February 27, 2020 Erika Abrah´ am´ - SAT and SMT solving 1 / 16 What is this talk about? Satisfiability problem The satisfiability problem is the problem of deciding whether a logical formula is satisfiable. We focus on the automated solution of the satisfiability problem for first-order logic over arithmetic theories, especially using SAT and SMT solving. Erika Abrah´ am´ - SAT and SMT solving 2 / 16 CAS SAT SMT (propositional logic) (SAT modulo theories) Enumeration Computer algebra DP (resolution) systems [Davis, Putnam’60] DPLL (propagation) [Davis,Putnam,Logemann,Loveland’62] Decision procedures NP-completeness [Cook’71] for combined theories CAD Conflict-directed [Shostak’79] [Nelson, Oppen’79] backjumping Partial CAD Virtual CDCL [GRASP’97] [zChaff’04] DPLL(T) substitution Watched literals Equalities and uninterpreted Clause learning/forgetting functions Variable ordering heuristics Bit-vectors Restarts Array theory Arithmetic Decision procedures for first-order logic over arithmetic theories in mathematical logic 1940 Computer architecture development 1960 1970 1980 2000 2010 Erika Abrah´ am´ - SAT and SMT solving 3 / 16 SAT SMT (propositional logic) (SAT modulo theories) Enumeration DP (resolution) [Davis, Putnam’60] DPLL (propagation) [Davis,Putnam,Logemann,Loveland’62] Decision procedures NP-completeness [Cook’71] for combined theories Conflict-directed [Shostak’79] [Nelson, Oppen’79] backjumping CDCL [GRASP’97] [zChaff’04] -
Mixing R with Other Languages JOHN D
Mixing R with other languages JOHN D. COOK, PHD SINGULAR VALUE CONSULTING Why R? Libraries, libraries, libraries De facto standard for statistical research Nice language, as far as statistical languages go “Quirky, flawed, and an enormous success.” Why mix languages? Improve performance of R code Execution speed (e.g. loops) Memory management Raid R’s libraries How to optimize R Vectorize Rewrite not using R A few R quirks Everything is a vector Everything can be null or NA Unit-offset vectors Zero index legal but strange Negative indices remove elements Matrices filled by column by default $ acts like dot, dot not special C package interface Must manage low-level details of R object model and memory Requires Rtools on Windows Lots of macros like REALSXP, PROTECT, and UNPROTECT Use C++ (Rcpp) instead “I do not recommend using C for writing new high-performance code. Instead write C++ with Rcpp.” – Hadley Wickham Rcpp The most widely used extension method for R Call C, C++, or Fortran from R Companion project RInside to call R from C++ Extensive support even for advanced C++ Create R packages or inline code http://rcpp.org Dirk Eddelbuettel’s book Simple Rcpp example library(Rcpp) cppFunction('int add(int x, int y, int z) { int sum = x + y + z; return sum; }') add(1, 2, 3) .NET RDCOM http://sunsite.univie.ac.at/rcom/ F# type provider for R http://bluemountaincapital.github.io/FSharpRProvider/ R.NET https://rdotnet.codeplex.com/ SQL Server 2016 execute sp_execute_external_script @language = N'R' , @script = -
Scientific Tools for Linux
Scientific Tools for Linux Ryan Curtin LUG@GT Ryan Curtin Getting your system to boot with initrd and initramfs - p. 1/41 Goals » Goals This presentation is intended to introduce you to the vast array Mathematical Tools of software available for scientific applications that run on Electrical Engineering Tools Linux. Software is available for electrical engineering, Chemistry Tools mathematics, chemistry, physics, biology, and other fields. Physics Tools Other Tools Questions? Ryan Curtin Getting your system to boot with initrd and initramfs - p. 2/41 Non-Free Mathematical Tools » Goals MATLAB (MathWorks) Mathematical Tools » Non-Free Mathematical Tools » MATLAB » Mathematica Mathematica (Wolfram Research) » Maple » Free Mathematical Tools » GNU Octave » mathomatic Maple (Maplesoft) »R » SAGE Electrical Engineering Tools S-Plus (Mathsoft) Chemistry Tools Physics Tools Other Tools Questions? Ryan Curtin Getting your system to boot with initrd and initramfs - p. 3/41 MATLAB » Goals MATLAB is a fully functional mathematics language Mathematical Tools » Non-Free Mathematical Tools You may be familiar with it from use in classes » MATLAB » Mathematica » Maple » Free Mathematical Tools » GNU Octave » mathomatic »R » SAGE Electrical Engineering Tools Chemistry Tools Physics Tools Other Tools Questions? Ryan Curtin Getting your system to boot with initrd and initramfs - p. 4/41 Mathematica » Goals Worksheet-based mathematics suite Mathematical Tools » Non-Free Mathematical Tools Linux versions can be buggy and bugfixes can be slow » MATLAB -
Pipenightdreams Osgcal-Doc Mumudvb Mpg123-Alsa Tbb
pipenightdreams osgcal-doc mumudvb mpg123-alsa tbb-examples libgammu4-dbg gcc-4.1-doc snort-rules-default davical cutmp3 libevolution5.0-cil aspell-am python-gobject-doc openoffice.org-l10n-mn libc6-xen xserver-xorg trophy-data t38modem pioneers-console libnb-platform10-java libgtkglext1-ruby libboost-wave1.39-dev drgenius bfbtester libchromexvmcpro1 isdnutils-xtools ubuntuone-client openoffice.org2-math openoffice.org-l10n-lt lsb-cxx-ia32 kdeartwork-emoticons-kde4 wmpuzzle trafshow python-plplot lx-gdb link-monitor-applet libscm-dev liblog-agent-logger-perl libccrtp-doc libclass-throwable-perl kde-i18n-csb jack-jconv hamradio-menus coinor-libvol-doc msx-emulator bitbake nabi language-pack-gnome-zh libpaperg popularity-contest xracer-tools xfont-nexus opendrim-lmp-baseserver libvorbisfile-ruby liblinebreak-doc libgfcui-2.0-0c2a-dbg libblacs-mpi-dev dict-freedict-spa-eng blender-ogrexml aspell-da x11-apps openoffice.org-l10n-lv openoffice.org-l10n-nl pnmtopng libodbcinstq1 libhsqldb-java-doc libmono-addins-gui0.2-cil sg3-utils linux-backports-modules-alsa-2.6.31-19-generic yorick-yeti-gsl python-pymssql plasma-widget-cpuload mcpp gpsim-lcd cl-csv libhtml-clean-perl asterisk-dbg apt-dater-dbg libgnome-mag1-dev language-pack-gnome-yo python-crypto svn-autoreleasedeb sugar-terminal-activity mii-diag maria-doc libplexus-component-api-java-doc libhugs-hgl-bundled libchipcard-libgwenhywfar47-plugins libghc6-random-dev freefem3d ezmlm cakephp-scripts aspell-ar ara-byte not+sparc openoffice.org-l10n-nn linux-backports-modules-karmic-generic-pae -
Modeling and Analysis of Hybrid Systems
Building Bridges between Symbolic Computation and Satisfiability Checking Erika Abrah´ am´ RWTH Aachen University, Germany in cooperation with Florian Corzilius, Gereon Kremer, Stefan Schupp and others ISSAC’15, 7 July 2015 Photo: Prior Park, Bath / flickr Liam Gladdy What is this talk about? Satisfiability problem The satisfiability problem is the problem of deciding whether a logical formula is satisfiable. We focus on the automated solution of the satisfiability problem for first-order logic over arithmetic theories, especially on similarities and differences in symbolic computation and SAT and SMT solving. Erika Abrah´ am´ - SMT solving and Symbolic Computation 2 / 39 CAS SAT SMT (propositional logic) (SAT modulo theories) Enumeration Computer algebra DP (resolution) systems [Davis, Putnam’60] DPLL (propagation) [Davis,Putnam,Logemann,Loveland’62] Decision procedures NP-completeness [Cook’71] for combined theories CAD Conflict-directed [Shostak’79] [Nelson, Oppen’79] backjumping Partial CAD Virtual CDCL [GRASP’97] [zChaff’04] DPLL(T) substitution Watched literals Equalities and uninterpreted Clause learning/forgetting functions Variable ordering heuristics Bit-vectors Restarts Array theory Arithmetic Decision procedures for first-order logic over arithmetic theories in mathematical logic 1940 Computer architecture development 1960 1970 1980 2000 2010 Erika Abrah´ am´ - SMT solving and Symbolic Computation 3 / 39 SAT SMT (propositional logic) (SAT modulo theories) Enumeration DP (resolution) [Davis, Putnam’60] DPLL (propagation) [Davis,Putnam,Logemann,Loveland’62] -
CLASS: XII VOLUME –I STAR OFFICE STAR WRITER *1. What Is Mean
www.Padasalai.Net www.TrbTnpsc.com CLASS: XII VOLUME –I STAR OFFICE STAR WRITER *1. What is mean by Text editing? Entering a new text or modifying the existing text in a document is known as text editing. The insertion point always indicates where the new text will appear. If a mistake is identified it can be corrected using either Backspace key or delete key. 2. List the functions of Star office. Star office consists of several applications which are grouped together into an integrated environment, their functions are Create Text document using Star Office writer Create Spreadsheet using Star Office Calc Create Presentations using Star Office Impress. Draw using Star Office Draw Create a database using Star Office Base *3. Define Word processor. Star office writer is a word processor. The term word processing refers to the activity carried out using a computer and suitable software to create, view, edit, manipulate, transmit, store, retrieve and print documents. Some of the commonly used word processors are MS Word, Lotus AmiPro, Word Perfect, Word Star, Word Pro. **4. List the selection shortcuts. Double click on a word - To select a word Click once next to the line - To select the particular line Press Ctrl + A - To select the entire document *5. How to correct mistakes in a document? A mistake can be corrected either using the Backspace key or Delete key. Backspace key deletes the characters to the left of the insertion point. Delete key deletes the characters to the right of the insertion point. 6. How can we switch between multiple documents? • Using Windows menu • Clicking the button visible on the taskbar • Pressing Alt + Tab 7.