CS 170: Computing for the Sciences and MathematicsWelcome to CS 170 !IntroductionsYour TurnCourse WebsiteGetting InformationGetting Help: When you have questionsWhat is CS 170?What This Course is AboutTextbooksOverall Course GradingAssignment DeadlinesCS 170 Academic HonestyComputer Accounts & SoftwareSlide 15Science(A) A set of facts … and (C)(B) Something Professional Scientists Do…Hanny’s VoorwerpWhat is the Scientific Method?Steps in Scientific MethodScience – Old SchoolScience – Newer PictureWhy Simulate?Experimental InvestigationTheoretical InvestigationComputational InvestigationModelingSteps of Modeling ProcessComputational Investigation Approach:Kepler's Findings:Slide 32Slide 33Computational Investigation ApproachesComputational ScienceClasses of ModelsSlide 37Slide 38Slide 39Slide 40HOMEWORK!Prof. Dan ErnstDepartment of Computer ScienceCS 170:Computing for the Sciences and MathematicsWelcome to CS 170 !InstructorDan ErnstOffice: P 139[email protected]Course Web Site: http://www.cs.uwec.edu/~ernstdj/courses/cs170/https://uwec.courses.wisconsin.eduD2L - for gradesIntroductionsMy backgroundPhD Michigan, 2005,High-performance computer architectureMentoring undergraduates Teach computer architecture and systems softwareMultiple collaborative research projects w/science and mathDirector, UWEC Center for Computational Science *OutsideWorkshops for the Supercomputing Education Program and National Computational Science InstituteYour TurnWhat is your name?Where are you from?What year you are in your studies?What is your favorite use for computers?Course Websitehttp://www.cs.uwec.edu/~ernstdj/courses/cs170/The web site is an integral part of the courseWebsite will provideLab/assignment information and due datesExam information, dates & timesLecture slidesbe sure to take your own notes!Samples from classGetting InformationRead your e-mail!Class e-mail group will be used by the instructorMembership mandatoryI assume you read everything sent to this list!Getting Help:When you have questionsRegarding HELP with course materials and assignmentsCome to office hours – Phillips 139Wednesday 1 – 3 pm Thursday 9:30 – 11:30 amOR by appointment (just e-mail or call my office)Send me an e-mail: [email protected] is CS 170?An introduction to the application of computational resources to solving problems in the sciences and mathematicsGoals:Knowledge:Understand the modeling processWork with some standard modeling techniquesSkills:Gain experience in working with computational tools (Vensim, Maple, etc.)What This Course is AboutThis course is NOT about:Programming general applications (take CS 163/145)Making web pages – (take CS 318)Ingredients of designing and writing softwareComputer programsA programming language (C++)Elementary programming conceptsUniversal constructsUseful techniquesProducing (software) solutions to problemsHow to think about problemsHow to articulate solution in a precise wayHow to understand what a program is doingTextbooksRequired:Shiflet and ShifletIntroduction to Computational Science: Modeling and Simulation for the Sciences.Overall Course GradingFinal Grade: Exams (3): 40%Weekly Assignments(10-12): 40%Larger Projects(2): 20%Assignment DeadlinesAssignmentsOn-Time: Always due by the beginning of class on the due date specifiedNo assignment will be accepted after the deadline, unless given prior approvalExceptions granted only under the most extraordinary circumstances Advice: PLAN for things to go wrong!CS 170 Academic HonestyAll work is to be done individually unless otherwise instructedWe will do significant group work in this course as wellDiscussing concepts is generally OK, exchanging or copying files or written work is NEVER OKcourse materials provided by the instructor (textbook, handouts, project write-ups, course web pages, etc.) may be used freely in your workdownloading code you found with google is NOT okCome see me for help if you have any uncertaintyComputer Accounts & SoftwareYour UWEC account is all that is neededMajor SoftwareVensim PLEAvailable to you (free) at all Windows lab computers on campusFree download - http://www.vensim.com/venple.htmlMapleAvailable to you (free) at all Windows lab computers on campusSupported Platforms: Windowsyour programs must run with the campus installation to be gradedProf. Dan ErnstDepartment of Computer ScienceCS 170:Computing for the Sciences and MathematicsScienceWhat is Science?(A) A set of facts(B) Something that professional scientists do(C) The underlying Truth about the Universe(D) None of the above(A) A set of facts … and (C)We are constantly making new discoveries and collecting new dataTechnology and experiments are changingOld Theories are replaced by new TheoriesAre any Theories not science?Even if they’re shown to be wrong later?(B) Something Professional Scientists Do…What is a scientist?Do you need a PhD?Amateur Scientists play an important role in discoveryBeing scientific DOES NOT require a Union CardHanny’s Voorwerp"Teacher finds new cosmic object", BBC, 5 August 2008What is the Scientific Method?What are the steps in the scientic method? Take two minutes to write down the steps we use in science.Steps in Scientific MethodCharacterization of existing dataCurrent TheoriesFormulation of a hypothesisDeduction - formulation of a predictive testExperimental testingError elimination and characterizationValidate or revise hypothesisNew Theories!Science – Old SchoolScience – Newer PictureWhy Simulate?Experimental InvestigationRecord observations and make predictionsExample: Tycho Brahe (1546-1601)Observed and recorded the motions and positions of the sun, moon, and Mars over a period of 20 yearsInvented the sextant, mural quadrant, and portable ring armillaryBased on his records, he could predict future planetary positionsTheoretical InvestigationTheory: logical, self-consistent model for explaining a natural or social behaviorAttempts to explain why things happen as they do using the language of mathemati csExamples: Isaac Newton's (1643 – 1727) law of gravitational attraction: "The gravitation attraction force between two point