WebSite Logo
  • Content
  • Similar Resources
  • Metadata
  • Cite This
  • Log-in
  • Fullscreen
Log-in
Do not have an account? Register Now
Forgot your password? Account recovery
  1. ACM SIGAPL APL Quote Quad (APLQ)
  2. Volume 24
  3. Volume 24, Issue 3, March 1994
  4. Speeding times
Loading...

Please wait, while we are loading the content...

Volume 35
Volume 34
Volume 33
Volume 32
Volume 31
Volume 30
Volume 29
Volume 28
Volume 27
Volume 26
Volume 25
Volume 24
Volume 24, Issue 4, June 1994
Volume 24, Issue 3, March 1994
An interview with Legi-Slate
How to become an APL/J sysop…and why
Revisiting rough spots
Speeding times
Dynamic programming algorithms for the knapsack problem
Rotating a graphics image with APL
APL for investigations of turbulence structure of dust storms in the Aral region
Volume 24, Issue 2, Dec. 1993
Volume 24, Issue 1, Aug. 1993
Volume 23
Volume 22
Volume 21
Volume 20
Volume 19
Volume 18
Volume 17
Volume 16
Volume 15
Volume 14
Volume 13
Volume 12
Volume 11
Volume 10
Volume 9
Volume 8
Volume 7
Volume 6
Volume 5
Volume 4
Volume 3

Similar Documents

...
Speeding up Lisp-based symbolic mathematics

Article

...
Speeding up the “Puzzle” Benchmark a “bit”

Article

...
Spinal cord: Speeding up locomotion.

Article

...
special times

Article

...
Speeding up protocols for small messages

Article

...
Physics. Speeding up quantum field theories.

Article

...
Speeding up the primal simplex algorithm on parallel computer

Article

...
Speeding up irregular applications in shared-memory multiprocessors:memory binding and group prefetching

Article

...
Times of change

Article

Speeding times

Content Provider ACM Digital Library
Author Spunde, Walter G.
Abstract In a recent article [2], it was shown that function samples for all functions composed of the elementary functions can be computed using two operators, By and Times, which deliver samples of the maximum possible order for linear combinations and products of functions. The article highlighted the simplicity of the exposition, but made no attempt to modify algorithms to improve the speed of calculations. In particular, it was noted that the APL functions took around three seconds to obtain the values of the first ten derivatives of the test function (x csc x)/ log arctan exp x while Mathematica 2.0 obtained the same results in about a second. The APL functions, however, were also able to obtain these derivatives at any number of points, and the calculation for 100 points took approximately 18 seconds. This article will show how a simple adjustment can significantly reduce these execution times.
Starting Page 16
Ending Page 18
Page Count 3
File Format PDF
ISSN 01636006
DOI 10.1145/181983.181987
Journal ACM SIGAPL APL Quote Quad (APLQ)
Volume Number 24
Issue Number 3
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 1988-12-01
Publisher Place New York
Access Restriction One Nation One Subscription (ONOS)
Content Type Text
Resource Type Article
  • About
  • Disclaimer
  • Feedback
  • Sponsor
  • Contact
  • Chat with Us
About National Digital Library of India (NDLI)
NDLI logo

National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.

Learn more about this project from here.

Disclaimer

NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.

Feedback

Sponsor

Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.

Contact National Digital Library of India
Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302
See location in the Map
03222 282435
Mail: support@ndl.gov.in
Sl. Authority Responsibilities Communication Details
1 Ministry of Education (GoI),
Department of Higher Education
Sanctioning Authority https://www.education.gov.in/ict-initiatives
2 Indian Institute of Technology Kharagpur Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project https://www.iitkgp.ac.in
3 National Digital Library of India Office, Indian Institute of Technology Kharagpur The administrative and infrastructural headquarters of the project Dr. B. Sutradhar  bsutra@ndl.gov.in
4 Project PI / Joint PI Principal Investigator and Joint Principal Investigators of the project Dr. B. Sutradhar  bsutra@ndl.gov.in
Prof. Saswat Chakrabarti  will be added soon
5 Website/Portal (Helpdesk) Queries regarding NDLI and its services support@ndl.gov.in
6 Contents and Copyright Issues Queries related to content curation and copyright issues content@ndl.gov.in
7 National Digital Library of India Club (NDLI Club) Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach clubsupport@ndl.gov.in
8 Digital Preservation Centre (DPC) Assistance with digitizing and archiving copyright-free printed books dpc@ndl.gov.in
9 IDR Setup or Support Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops idr@ndl.gov.in
I will try my best to help you...
Cite this Content
Loading...