Rui H F Azevedo - Página pessoal - Linguagens e projectos anteriores

Languages and old projects / Linguagens e projectos anteriores (historial)

Date/Data	Language/Linguagem	Projectos ou experiência	Projects or experience
1983	Basic's	Sinclair basic e outros dialectos Formularium program - Base de dados de formulas e respectivo motor de inferência	Sinclair basic and other basic dialects Formularium program - Formula database and respective inference motor
1984	Assembly Z80	Extensão do interpretador Basic Sinclair	Interpreted Sinclair basic extension
1988	Logo	SCSI Logo para PC's (apreciação) Extensão Sinclair Basic para suportar graficos turtle	Apreciated SCSI Logo for PC's Sinclair Basic Extension to support turtle graphics
1990	DBase IV (DOS)	Rotinas diversas	Several routines
1991	Assembly 8086	Rotinas elementares	Elementar routines
1991	Clipper summer 87	Listagens e rotinas elementares	Reports and elementar routines
1991	Clipper 5	Listagens, Menus, Screen Saver etc..	Reports, Screen Saver, menu systems, etc...
1993	Turbo C++ 1.x	Aprendizagem C e C++ OOP	Learning C and C++ OOP
1994	Borland C++ 3.1	Projectos na área da algebra e OOP geral	Algebraic symbolic solver project
1995	Borland C++ 4.0	Projecto Algebra - Editor de Equações	Algebra Project - Equation Editor
1996	Borland C++ Develop. Suite 5.0	Versão 32Bits do editor	32Bits Version of the editor

Dates refer to when started with languague, not to project dates.
As datas são referentes ao inicio da programação e não aos projectos.

Formularium program: Builded with interpreted basic, back in 1988/89, this program maintained a database of formulas. As user inputed the units and values, the inference motor searched the database and outputed all possible cross-link calculations.
This program had no graphical interface and no tools for database load. Leaving to the programmer (me) the task of initializing the database and load it with all decompositions of every formula entered.
MathCore project: Mathcore and some related project prototypes, for computer manipulation of algebraic symbols, in all of those projects there was no user expression input and the projects where tested with code wired expressions.
Those projects were all at an experimental fase, there I have fine tuned the needed object structure for symbolic manipulation.
Achived a certain degree in resolution/solving i needed an editor, this need leaded me to the current project.; Some output sample of MathCore (text output)
Resolution of 2*x/3=x*4, isolating x
2*x/3=x*4<=>
<=>2/3*x=x*4<=>
<=>2/3*x-x*4=0<=>
<=>x*(-10/3)=0<=>
<=>x=0|-10/3=0<=>
<=>x=0|False<=>
<=>x=0

Resolution of E=R*I, isolating R
E=R*I<=>
<=>E-R*I=0<=>
<=>R*I=E-0<=>
<=>R*I=E<=>
<=>R=E/I

Resolution of a*x+x/b=0, isolating x
a*x+x/b=0<=>
<=>x*(a+1/b)=0<=>
<=>x=0|a+1/b=0<=>
<=>x=0|b=1/-a

última actualização em 97/08/11
Encontre-me na UnderNet #coders #c++ - nick: "neur"||"Neuron"
Rui H F Azevedo

ruihfazevedo@yahoo.com

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