Douglas Harder: New Applications
http://www.maplesoft.com/applications/author.aspx?mid=132
en-us2014 Maplesoft, A Division of Waterloo Maple Inc.Maplesoft Document SystemWed, 20 Aug 2014 16:37:36 GMTWed, 20 Aug 2014 16:37:36 GMTNew applications published by Douglas Harderhttp://www.mapleprimes.com/images/mapleapps.gifDouglas Harder: New Applications
http://www.maplesoft.com/applications/author.aspx?mid=132
Quaternions
http://www.maplesoft.com/applications/view.aspx?SID=96897&ref=Feed
<p>Quaternions for Maple™ is an easy-to-use toolbox for Maple which allows professionals, researchers, and students to learn about, experiment with, and model systems through quaternions in the Maple worksheet environment. It transforms Maple into a system which works with quaternions as seamlessly as the basic system deals with complex numbers. The functionality covers many of the basic principles of quaternions including an environment where the multiplication operator (*) is no longer commutative.</p><img src="/view.aspx?si=96897/quaternions_logo_s.jpg" alt="Quaternions" align="left"/><p>Quaternions for Maple™ is an easy-to-use toolbox for Maple which allows professionals, researchers, and students to learn about, experiment with, and model systems through quaternions in the Maple worksheet environment. It transforms Maple into a system which works with quaternions as seamlessly as the basic system deals with complex numbers. The functionality covers many of the basic principles of quaternions including an environment where the multiplication operator (*) is no longer commutative.</p>96897Wed, 15 Sep 2010 04:00:00 ZDouglas HarderDouglas HarderFuzzySets
http://www.maplesoft.com/applications/view.aspx?SID=96899&ref=Feed
<p>FuzzySets for Maple™ is an easy-to-use toolbox for Maple which allows professionals, researchers, and students to learn about, experiment with, and model systems through fuzzy logic and fuzzy sets in the Maple worksheet environment. It transforms Maple into a system which works with fuzzy values and fuzzy sets as seamlessly as the basic system deals with classical logic and sets. The functionality includes most principal areas of fuzzy logic and fuzzy sets, including fuzzy control theory.</p><img src="/view.aspx?si=96899/FuzzySets_logosm.gif" alt="FuzzySets" align="left"/><p>FuzzySets for Maple™ is an easy-to-use toolbox for Maple which allows professionals, researchers, and students to learn about, experiment with, and model systems through fuzzy logic and fuzzy sets in the Maple worksheet environment. It transforms Maple into a system which works with fuzzy values and fuzzy sets as seamlessly as the basic system deals with classical logic and sets. The functionality includes most principal areas of fuzzy logic and fuzzy sets, including fuzzy control theory.</p>96899Wed, 15 Sep 2010 04:00:00 ZDouglas HarderDouglas HarderIntroduction to Fuzzy Controllers
http://www.maplesoft.com/applications/view.aspx?SID=1398&ref=Feed
This worksheet uses FuzzySets for Maple to demonstrate several examples solving fuzzy logic problems in Maple.<img src="/view.aspx?si=1398/FuzzySets_logo.gif" alt="Introduction to Fuzzy Controllers" align="left"/>This worksheet uses FuzzySets for Maple to demonstrate several examples solving fuzzy logic problems in Maple.1398Mon, 01 Nov 2004 00:00:00 ZDouglas HarderDouglas HarderMathematical Introduction to Fuzzy Logic, Fuzzy Sets, and Fuzzy Controls
http://www.maplesoft.com/applications/view.aspx?SID=1409&ref=Feed
Classical logic is based on binary logic with two values of truth. In Maple, these two values are true and false .
Fuzzy logic is a multivalued logic with truth represented by a value on the closed interval [0, 1], where 0 is equated with the classical false value and 1 is equated with the classical true value. Values in (0, 1) indicate varying degrees of truth.
For example, the question Is that person over 180 cm feet tall? has only two answers, yes or no .
On the other hand, the question Is that person tall? has many answers. Someone over 190 cm is almost universally considered to be tall. Someone who is 180 cm may be considered to be sort of tall , while someone who is under 160 cm is not usually considered to be tall.<img src="/view.aspx?si=1409/FuzzySets_logo.gif" alt="Mathematical Introduction to Fuzzy Logic, Fuzzy Sets, and Fuzzy Controls" align="left"/>Classical logic is based on binary logic with two values of truth. In Maple, these two values are true and false .
Fuzzy logic is a multivalued logic with truth represented by a value on the closed interval [0, 1], where 0 is equated with the classical false value and 1 is equated with the classical true value. Values in (0, 1) indicate varying degrees of truth.
For example, the question Is that person over 180 cm feet tall? has only two answers, yes or no .
On the other hand, the question Is that person tall? has many answers. Someone over 190 cm is almost universally considered to be tall. Someone who is 180 cm may be considered to be sort of tall , while someone who is under 160 cm is not usually considered to be tall.1409Mon, 01 Nov 2004 00:00:00 ZDouglas HarderDouglas HarderIntroduction to Fuzzy Sets on a Real Domain
http://www.maplesoft.com/applications/view.aspx?SID=1410&ref=Feed
The RealDomain subpackage of FuzzySets allows the user to construct and work with fuzzy subsets of the real line.
The membership function of a fuzzy subset of the real line is represented by a piecewise function with a range of [0, 1].
The RealDomain subpackage includes a number of constructors of fuzzy subsets of R which simplify the construction of fuzzy sets and set operators and routines for working with fuzzy subsets of R .<img src="/view.aspx?si=1410/FuzzySets_logo.gif" alt="Introduction to Fuzzy Sets on a Real Domain" align="left"/>The RealDomain subpackage of FuzzySets allows the user to construct and work with fuzzy subsets of the real line.
The membership function of a fuzzy subset of the real line is represented by a piecewise function with a range of [0, 1].
The RealDomain subpackage includes a number of constructors of fuzzy subsets of R which simplify the construction of fuzzy sets and set operators and routines for working with fuzzy subsets of R .1410Mon, 01 Nov 2004 00:00:00 ZDouglas HarderDouglas HarderWarnings PowerTool
http://www.maplesoft.com/applications/view.aspx?SID=4346&ref=Feed
The Warnings PowerTool is a package which prompts users to verify if you are entering expressions the way you intend. The warning messages display the expression entered and suggests an alternative way to define the expression. Warning messages are available when assigning variables or functions, attempting to multiply an expression, defining matrices and more.<img src="/view.aspx?si=4346/warningPT_logo.gif" alt="Warnings PowerTool" align="left"/>The Warnings PowerTool is a package which prompts users to verify if you are entering expressions the way you intend. The warning messages display the expression entered and suggests an alternative way to define the expression. Warning messages are available when assigning variables or functions, attempting to multiply an expression, defining matrices and more.4346Fri, 20 Dec 2002 14:16:11 ZDouglas HarderDouglas HarderMastermind maplet
http://www.maplesoft.com/applications/view.aspx?SID=4220&ref=Feed
This maplet simulates the classic board game Mastermind (TM)<img src="/view.aspx?si=4220/appviewer.aspx.jpg" alt="Mastermind maplet" align="left"/>This maplet simulates the classic board game Mastermind (TM)4220Thu, 24 Jan 2002 13:20:24 ZDouglas HarderDouglas HarderSpirograph maplet
http://www.maplesoft.com/applications/view.aspx?SID=4214&ref=Feed
This maplet generates spiral graphs, similar to the commercially available game Spirograph(TM).<img src="/view.aspx?si=4214/spirograph.gif" alt="Spirograph maplet" align="left"/>This maplet generates spiral graphs, similar to the commercially available game Spirograph(TM).4214Thu, 24 Jan 2002 12:30:03 ZDouglas HarderDouglas HarderINTERVALs Package
http://www.maplesoft.com/applications/view.aspx?SID=4143&ref=Feed
This package is meant to give a front end package to Maple's already existing interval arithmetic tools, including the interval object and the command . It over-rides the operations +, -, *, /, ^, and the functions and and the various trigonometric, hyprbolic and their inverse functions and the exponential and logrithmic functions. It solves two problems: the need to call evalr on the result of operations, and it solves the problem of cancelation of equal objects.
<img src="/view.aspx?si=4143//applications/images/app_image_blank_lg.jpg" alt="INTERVALs Package" align="left"/>This package is meant to give a front end package to Maple's already existing interval arithmetic tools, including the interval object and the command . It over-rides the operations +, -, *, /, ^, and the functions and and the various trigonometric, hyprbolic and their inverse functions and the exponential and logrithmic functions. It solves two problems: the need to call evalr on the result of operations, and it solves the problem of cancelation of equal objects.
4143Thu, 18 Oct 2001 13:48:11 ZDouglas HarderDouglas HarderCommutator package for Maple 6
http://www.maplesoft.com/applications/view.aspx?SID=123869&ref=Feed
This package provides for manipulation and simplification of commutators, expanding commutators in terms of &* Maple's non-commutatorive multiplication operator, and converting an expression in terms of &* to commutator form. <img src="/view.aspx?si=3452//applications/images/app_image_blank_lg.jpg" alt="Commutator package for Maple 6" align="left"/>This package provides for manipulation and simplification of commutators, expanding commutators in terms of &* Maple's non-commutatorive multiplication operator, and converting an expression in terms of &* to commutator form. 123869Mon, 18 Jun 2001 00:00:00 ZMichael MonaganMichael Monagan