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The Association Between Computer- Oriented and Non-Computer-Oriented Mathematics Instruction, Student Achievement, and Attitude Towards Mathematics in Introductory Calculus

Description: The purposes of this study were (a) to develop, implement, and evaluate a computer-oriented instructional program for introductory calculus students, and (b) to explore the association between a computer-oriented calculus instructional program, a non-computer-oriented calculus instructional program, student achievement on three selected calculus topics, and student attitude toward mathematics. An experimental study was conducted with two groups of introductory calculus students during the Sprin… more
Date: August 1989
Creator: Hamm, D. Michael (Don Michael)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Texas Academy of Mathematics and Science Parent Handbook, 1989-1990

Description: Handbook for parents of students in the Texas Academy of Mathematics and Science for the 1989-90 school year. The handbook includes information on academic assistance, computers, high school equivalency, honors, National Merit Scholar program, student life, address information, the bookstore, the campus, discipline, emotional concerns, employment, health care, housing, insurance, packing, parental permission, the post office, safety, security, shipping, spending money, storage, the telephone, t… more
Date: 1989
Creator: Texas Academy of Mathematics and Science
Item Type: Refine your search to only Pamphlet
Partner: Texas Academy of Mathematics and Science
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Article of Incorporation of Parents' Council, Texas Academy of Mathematics and Science

Description: Articles of incorporation for the Texas Academy of Mathematics and Science Parents' Council. The articles include the name, status, duration, purpose, use of earnings, dissolution, selection of directors, president of the corporation, registered agents, and directors of the council. The bylaws of the Parents' Council are also included.
Date: July 31, 1989
Item Type: Refine your search to only Text
Partner: Texas Academy of Mathematics and Science
open access

First-Year Teacher Usage of Manipulatives in Mathematics Instruction: A Case Study

Description: This qualitative case study examined the use of manipulatives in mathematics instruction by six first-year intermediate teachers in a north Texas school district. Their preparation for, access to, and perceptions about manipulatives were examined. Specific content associated with manipulative usage was identified.
Date: December 1989
Creator: Sylvester, Barbara N. (Barbara Nelson)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Brief Description of Connecticut's Performance Assessments in High School Science and Mathematics

Description: A brief description of Connecticut's performance assessments in High School Science and Mathematics, written by Joan Boykoff Baron, Ph.D, Connecticut State Department of Education. The Connecticut State Department of Education received a grant from the National Science Foundation to work with the Coalition of Essential Schools and the State Departments of Education to develop performance assessments in science and mathematics.
Date: October 10, 1989
Creator: Baron, Joan Boykoff
Item Type: Refine your search to only Text
Partner: UNT Libraries Special Collections
open access

Engineering Physics and Mathematics Division progress report for period ending August 31, 1989

Description: This paper contains abstracts on research performed at the Engineering Physics and Mathematics Division of Oak Ridge National Laboratory. The areas covered are: mathematical science; nuclear-data measurement and evaluation; intelligent systems; nuclear analysis and shielding; and Engineering Physics Information Center. (LSP)
Date: December 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research in Mathematics and Computer Science at Argonne : January 1988 - August 1989

Description: This report, reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period January 1988 - August 1989. The body of the report gives a brief look at the MCS staff an-d the research facilities, and discusses various projects carried out in two major areas of research: analytical and numerical methods and advanced computing concepts. Projects funded by non-DOE sources are also discussed, and new technology transfer activities are des… more
Date: August 1989
Creator: Pieper, Gail W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rule matrices, degree vectors, and preimages for cellular automata

Description: Cellular automata are mathematical systems characterized by discreteness (in space, time, and state values), determinism, and local interaction. Few analytical techniques exist for such systems. The rule matrix and degree vectors of a cellular automaton -- both of which are determined a priori from the function defining the automaton, rather than a posteriori from simulations of its evolution -- are introduced here as tools for understanding certain qualitative features of automaton behavior. T… more
Date: January 1, 1989
Creator: Jen, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A parallel multigrid method for data-driven multiprocessor systems

Description: The multigrid algorithm (MG) is recognized as an efficient and rapidly converging method to solve a wide family of partial differential equations (PDE). When this method is implemented on a multiprocessor system, its major drawback is the low utilization of processors. Due to the sequentiality of the standard algorithm, the fine grid levels cannot start relaxation until the coarse grid levels complete their own relaxation. Indeed, of all processors active on the fine two dimensional grid level … more
Date: December 31, 1989
Creator: Lin, C. H.; Gaudiot, J. L. & Proskurowski, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LAPACK Working Note 9: A test matrix generation suite

Description: We discuss the design and implementation of a suite of test matrix generators for testing linear algebra software. These routines generate random matrices with certain properties which are useful for testing linear equation solving, least squares, and eigendecomposition software. These properites include the spectrum, symmetry, bandwidth, norm, sparsity, conditioning (with respect to inversion or for the eigenproblem), type (real or complex), and storage scheme (dense, packed or banded).
Date: February 28, 1989
Creator: Demmel, J. & McKenney, A. (New York Univ., NY (United States). Courant Institute)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A rosetta stone for connectionism

Description: The term connectionism is usually applied to neural networks. There are, however, many other models that are mathematically similar, including classifier systems, immune networks, autocatalytic chemical reaction networks, and others. In view of this similarity, it is appropriate to broaden the term connectionism. I define a connectionist model as a dynamical system with two properties: the interactions between the variables at any given time are explicitly constrainted to a finite list of conne… more
Date: January 1, 1989
Creator: Farmer, J.D. (Los Alamos National Lab., NM (USA) Santa Fe Inst., NM (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LAPACK Working Note 9: A test matrix generation suite

Description: We discuss the design and implementation of a suite of test matrix generators for testing linear algebra software. These routines generate random matrices with certain properties which are useful for testing linear equation solving, least squares, and eigendecomposition software. These properites include the spectrum, symmetry, bandwidth, norm, sparsity, conditioning (with respect to inversion or for the eigenproblem), type (real or complex), and storage scheme (dense, packed or banded).
Date: February 28, 1989
Creator: Demmel, J. & McKenney, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Addendum, automatic data processing (ADP) security plan, Revision 1. ADP facility number: PNL-63

Description: This document is an addendum to the ADP security plan for the 3760 Building, Revision 01, and provides specific information regarding location, equipment, use, and responsible individuals. Procedures for protecting the classified ADP facility, equipment, software, and data will be consistent with the Generic ADP Security Plan for the 3760 Building, Rev. 1, unless otherwise noted in this document.
Date: June 30, 1989
Creator: Johnston, B. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Differential algebras without differentials: An easy C++ implementation

Description: Automated differentiation can be motivated and explained rather plainly without any reference to infinitesimals or differentials whatsoever. We shall describe one possible approach in this paper. The method which we shall use will suggest its own implementation. However, FORTRAN is not the most natural language in which to carry it out. In the second section we shall describe an almost trivial implementation using C++. (Indeed, one of the motivations for writing this paper is to persuade milita… more
Date: March 1, 1989
Creator: Michelotti, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Visualization of scientific data - work performed for X-3. Final report

Description: This is the final report on this project. Applied Computing Systems, Inc., started work on the computer codes for visualization of X-3 scientific data on the Silicon Graphics 4D70/GT workstation on May 18, 1989. There were two separate codes, a 2-D and a 3-D version, that had been developed by X-3 over approximately the previous six months. Work was performed under three successive tasking orders, and the specific accomplishments are summarized as excerpts from the monthly reports that had been… more
Date: September 29, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A search for good lattice rules based on the reciprocal lattice generator matrix

Description: The search for cost-effective lattice rules is a time-consuming and difficult process. After a brief overview of some of the lattice theory relevant to these rules, a new approach to this search is suggested. This approach is based on a classification of lattice rules using the upper triangular lattice form'' of the reciprocal lattice generator matrix. 18 refs., 1 tab.
Date: January 1, 1989
Creator: Lyness, J.N. & Newman, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The USC macro data-flow simulator. Technical report

Description: As device technology develops to the limit of speed of light, parallel processing comes into play for high performance calculation. Conventional von Neumann computation show difficulty because of its single threadness. Many hybrid models have been proposed; they are reviewed, leading to the macro data-flow model. This macro data-flow is a scheme having a multilevel of model of execution which higher model is a tagged data-flow and lower level is von Neumann. Partitioning should be carefully don… more
Date: October 11, 1989
Creator: Yoo, N. & Gaudiot, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computer aided surface representation. Progress report, June 1, 1988--May 31, 1989

Description: The central research problem of this project is the effective representation and display of surfaces, interpolating to given information, in three or more dimensions. In a typical problem, we wish to create a surface from some discrete information. If this information is itself on another surface, the problem is to determine a ``surface defined on a surface,`` which is discussed below. Often, properties of an already constructed surface are desired: such ``geometry processing`` is described bel… more
Date: February 9, 1989
Creator: Barnhill, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Parallel computing: One opportunity, four challenges

Description: The author reviews briefly the area of parallel computer processing. This area has been expanding at a great rate in the past decade. Great strides have been made in the hardware area, and in the speed of performance of chips. However to some degree the hardware area is beginning to run into basic physical speed limits, which will slow the rate of advance of this area simply because of physical limitations. The author looks at ways that computer architecture, and software applications, can work… more
Date: December 31, 1989
Creator: Gaudiot, J.-L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Writing Parallel, Discrete-Event Simulations in Modsim: Insight and Experience

Description: The Time Warp Operating System (TWOS) has been the focus of much research in parallel simulation. A new language, called ModSim, has been developed for use in conjunction with TWOS. The coupling of ModSim and TWOS provides a tool to construct large, complex simulation models that will run on several parallel and distributed computer systems. As part of the Griffin Project'' underway here at Los Alamos National Laboratory, there is strong interest in assessing the coupling of ModSim and TWOS fro… more
Date: September 11, 1989
Creator: Rich, D.O. & Michelsen, R.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Interactive pre- and post-processing tools for finite-difference time-domain codes

Description: Practical three-dimensional electromagnetic modeling has traditionally been hampered by insufficient computing power. Recent advances in computer hardware are beginning to remove this difficulty, and one can expect that this trend will continue for the foreseeable future. To exploit this increased computer power and to solve more realistic problems, researchers have developed numerous algorithms appropriate for 3-D calculations and have built large general-purpose computer codes around them. In… more
Date: January 12, 1989
Creator: Cabral, B. K.; Laguna, G. W.; McLeod, R. R.; Ray, S. L.; Pennock, S. T.; Berger, R. L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nondestructive x-ray microanalysis bidirectional scanning and data acquisition system

Description: A system for making fast scans of specimens and acquiring data was developed at the oak Ridge Y-12 Plant. An LSI 11/23 computer using the RT11 operating system controls the scan and data acquisition. Scan software was written which would program a Unidex III stepping motor controller to make the scan motions while the position was monitored and the data acquired through the computer`s timer/counter boards from the multichannel analyzer`s four region of interest (ROI) outputs. Small areas of a p… more
Date: September 12, 1989
Creator: Lawson, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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