Learn More About This
Directory
This directory sponsored by SIQL, a Spider Makers company...
1. function from FOLDOC
- foldoc.doc.ic.ac.uk
- function.
- <mathematics> (Or "map", "mapping") If D and C are sets (the domain and codomain) then a function f from D to C, normally written "f : D -> C" is a subset of D x C such that: .
- the function is defined for every element of D. ...
- the function is uniquely defined for every element of D. ...
- See also image, inverse, partial function. ...
- In programming (except in functional programming), a function may return different values each time it is called with the same argument values and may have side effects. ...
- A procedure is a function which returns no value but has only side-effects. ... ANSI C even defines a type, void, for the result of a function that has no result. ...
- Nearby terms: fully qualified domain name « fum « Fun « function » functional » functional database » functional dependency .
2. index.html
- www.dtc.umn.edu
- Andrew Odlyzko: Tables of zeros of the Riemann zeta function.
- The first 100,000 zeros of the Riemann zeta function, accurate to within 3*10^(-9). ...
- The first 100 zeros of the Riemann zeta function, accurate to over 1000 decimal places. ...
- Zeros number 10^12+1 through 10^12+10^4 of the Riemann zeta function. ...
- Zeros number 10^21+1 through 10^21+10^4 of the Riemann zeta function. ...
- Zeros number 10^22+1 through 10^22+10^4 of the Riemann zeta function. ...
3. INVERSE OF A FUNCTION APPLET
- members.shaw.ca
- The sliders change the parameters c and d in the function y = af( bx ). ...
- The black graph is the graph of the function. ...
- The red graph is the graph of the inverse of the function. ...
- The sliders change the parameters a, b, h and k in the function y = af b( x - h ) + k. ...
- Drag the filled blue location to move the graph of the function (and thus change parameters h and k). ...
- Drag a location along the graph of the function vertically to stretch the graph vertically about the line y = k (and thus change parameter a). ...
- Drag a location along the graph of the function horizontally to stretch the graph horizontally about the line x = h (and thus change parameter b). ...
- Drag the empty black location to move the reference location along the graph of the function. ...
- Drag the filled red location to move the reference location along the graph of the inverse of the function. ...
- Use the "SET FUNCTION" button to select a different basic function and restore the applet to the initial state. ...
4. Riemann's Zeta Function
- www.maths.ex.ac.uk
- Riemann's zeta function.
- "The zeta function is probably the most challenging and mysterious object of modern mathematics, in spite of its utter simplicity".
- ' But the most beautiful in all mathematics is the zeta function. ...
- a variety of evidence suggests that underlying Riemann's zeta function is some unknown classical, mechanical system whose trajectories are chaotic and without time-reversal symmetry, with the property that, when quantised, its allowed energies are the Riemann zeros. ...
- basic introduction to the Riemann zeta function (C. ...
- in-depth examination of the Riemann zeta function (E. ...
- WWN notes on the Riemann zeta function (part of a work-in-progress) .
- Weil, "Prehistory of the Zeta-Function", from Number Theory, Trace Formulas and Discrete Groups, K. ...
- Ayoub, “Euler and the zeta function”, American Mathematical Monthly 81 (1974) 1067-1086. ...
- Devlin, "How Euler discovered the zeta function" (elementary historical introduction to the function which Riemann later extended to the complex plane) .
- Riemann's original eight-page paper introducing his zeta function .
- 67, a wonderful applet produced by Raymond Manzoni for this site - explore the behaviour of the Riemann zeta function in and around the critical strip in a highly visual, interactive way. ...
- more applets for exploring the behaviour of the Riemann zeta function by Glen Pugh of the University of British Columbia .
- Arias-de-Reyna, "X-Ray of Riemann zeta-function" (preprint, revised 09/03) .
- the functional equation of the zeta function and related issues .
- Xavier Gourdon and Pascal Sebah's notes on the zeta function .
5. Q94: What is a Hash Function?
- www.x5.net
- What is a Hash Function? .
- A hash function H is a transformation that takes a variable-size input m and returns a fixed-size string, which is called the hash value h (that is, h = H(m)). ...
- The basic requirements for a cryptographic hash function are: .
- A hash function H is said to be one-way if it is hard to invert, where "hard to invert" means that given a hash value h, it is computationally infeasible to find some input x such that H(x) = h. ...
- If, given a message x, it is computationally infeasible to find a message y not equal to x such that H(x) = H(y) then H is said to be a weakly collision-free hash function. ...
- A strongly collision-free hash function H is one for which it is computationally infeasible to find any two messages x and y such that H(x) = H(y). ...
- Perhaps the main role of a cryptographic hash function is in the provision of digital signatures. ...
6. Nonlinear Iterated Function Systems
- www.cg.tuwien.ac.at
- Nonlinear Iterated Function Systems.
- An Iterated Function System (IFS) specifies a discrete dissipative dynamical system. An IFS consists of a set of contractive functions which define a more complex contractive function W(). Due to the contractivity of W() it can be shown that there is a unique attractor A' that satisfies A' = W(A') Furthermore any set A will be eventually mapped onto this attractor A' under repeated application of function W(). ... The usage of nonlinear functions increases the flexibility when defining Iterated Function Systems. ...
- Above an interactive program for the specification of 2D linear and nonlinear Iterated Function Systems is shown. ...
- Modeling and Rendering of Nonlinear Iterated Function Systems .
- Interactive Design of Nonlinear Functions for Iterated Function Systems .
7. Function Points, Measures, and Software Metrics
- www.functionpoints.com
- Function Points.
- Function Points and the Function Point Model are measurement tools to manage software. Function Points, with other business measures, become Software Metrics. ...
- Function Points measure Software size. Function Points measure functionality by objectively measuring functional requirements. Function Points quantify and document assumptions in Estimating software development. Function Points and Function Point Analysis are objective; Function Points are consistent, and Function Points are auditable. Function Points are independent of technology. Function Points even apply regardless of design. But Function Points do not measure people directly. Function Points is a macro tool, not a micro tool. Function Points are the foundation of a Software Metrics program. ...
- Software Metrics include Function Points as a normalizing factor for comparison. Function Points in conjunction with time yield Productivity Software Metrics. Function Points in conjunction with defects yield Quality Software Metrics. Function Points with costs provide Unit Cost, Return on Investment, and Efficiency Software Metrics, never before available. ...
8. Write and Plot a Function
- www.phys.hawaii.edu
- Write and Plot a Function .
- The above applet combination allows you plot any function and change the attributes of your graph. One can enter the function into the command line below. ... The y values of the graph are scaled automatically, so note that entering an infinite function i. ...
9. FUNCTION FIELD ARITHMETIC
- www.worldscibooks.com
- FUNCTION FIELD ARITHMETIC.
- This book provides an exposition of function field arithmetic with emphasis on recent developments concerning Drinfeld modules, the arithmetic of special values of transcendental functions (such as zeta and gamma functions and their interpolations), diophantine approximation and related interesting open problems. While it covers many topics treated in 'Basic Structures of Function Field Arithmetic' by David Goss, it complements that book with the inclusion of recent developments as well as the treatment of new topics such as diophantine approximation, hypergeometric functions, modular forms, transcendence, automata and solitons. ...
- Number Fields and Function Fields .
- FUNCTION FIELD ARITHMETIC ">Recommend this book .
10. Structure 2 Function: Structure2Function: Structural Genomics Pilot Project (S2F CARB)
- s2f.carb.nist.gov
- Welcome To Structure 2 Function Project Homepage.
- Many of the gene products of completely sequenced organisms are "hypothetical" ,they cannot be related to any previously characterized proteins, and so are of unknown structure and function.
- Structure 2 Function (S2F) is a structural genomics projects that aims to solve structures of these poorly characterized proteins by using X-ray crystallography and protein NMR techniques. ...
- Structure to Function Project .
11. irt.org - JavaScript Function FAQ Knowledge Base
- developer.irt.org
- org - JavaScript Function FAQ Knowledge Base.
- org | Knowledge Base | JavaScript | Function.
- FAQ 800 Is there a way to call on a function without knowing its name?.
- FAQ 936 How can a function return true first time, then false, then true. ...
- FAQ 1170 How can I tell how many arguments have been passed to a function, and what data type the arguments are?.
- FAQ 1234 How can a clone a function definition into a string object and then use the string object to recreate the function at a later point?.
12. Sheppard Software - Math Function Mania
- www.sheppardsoftware.com
- Math Function Mania.
- Math Function Mania is a fun multimedia game for grades 7-12 that teaches functions, algebra and problem solving skills. You must first detect which function is being used, and then solve it by clicking on the correct answer. ...
- Get the registration key to unlock the shareware version of Math Function Mania and the download information for the other nine registered programs. ...
- *You must download the shareware version of Math Function Mania to use this purchase method.
- Get a CD-ROM via postal delivery containing the registered version of Math Function Mania and the other nine registered programs.
Other related topics:
Do you have a great site about Function? Is
your Function site listed here?
Would you like a prefered placement of your site in this directory?
It's easy! First place, the HTML from the box below on your page that
you would like listed in this directory.
Then use our link submission request with
your name, your contact information, and the URL of your site that has
a link to this directory. After we
verify your link to us, we'll make sure your site stays in our directory,
and we'll give it prefered placement here also.
Here is how to make a simple text link to us. Just copy the code in this
box to your website:
We can also develop a custom Guide To The Internet for your site. Please
request your own
custom Guide To The Internet.
This custom Guide To The Internet produced by
Siql. Visit us today, and find out how to get your own
custom guide to the Internet, and how to get your site
listed in our guides.
Copyright 1995-2005 by Siql. All
Rights Reserved.