Random Thoughts from a Random Fellow

A collection of online mathematical applications, plant databases and other eclectic information.

3D Mathematical Surfaces Type an equation and see the resulting surface in interactive 3D. Main demo Advanced demo, covers all types of curves and surfaces. Help, download instructions, release notes				Jep A Java library for parsing, evaluating mathematical equations. Latest version Available at singularsys.com, includes a configurable parser allowing different syntax of equations. Demos Plot functions like `y=x^2` Plot parametric curves like `x=cos(x)`, `y=cos(x)` Plot implicit and algebraic curves like `x^2+y^2=1` Older versions With DJep extensions for differentiation, vectors and matrices, arbitrary groups, and fast evaluation. Demos: Differentiation, Vectors and Matrices Groups. Documentation: Jep, DJep, Javadoc. SourceForge project page Javascript version GWTJep a JavaScript parser/evaluation, based on Google Web Toolkit and offer good security for user inputted equations. Forum - public forum for general questions and discussion.



Wallpaper patterns Explore the 17 symmetric repeating patterns which can be used to tile the plane. Wallpaper patterns				Mathematics tuition Interested in private mathematics tuition in south-east Cornwall? I offer tuition at all ages and all levels with an emphasis on engaging the student and exciting the students: My son has just finished his GCSEs and I had a fantastic tutor, Richard Morris, who taught him for 1.5 hours per week for about 12 wks before his exams. From really disliking maths he now really loves it and found his exam straightforward. - Di Baker MentOrg



Polyhedra A collection of uniform polyhedra in rotatable 3D. Polyhedra viewer				Permaculture.info A new project to create a community driven open source resource for plants and permaculture. permaculture.info



A Parade of surfaces A pictorial introduction to singularity theory.				Sorites Paradox A philosophical investigation into how discrete labels can be given to continuously changing phenomena. Hysteresis and Sorites



Papers Some of my mathematical papers. A Web-based Client-Server System for the Calculation of Algebraic Surfaces Slides Full paper A new method for drawing algebraic surfaces The sub-parabolic lines of a surface The use of computer graphics for solving problems in singularity theory Statistical models of object interaction. Visualizing duals of surfaces unpublished.				Left-Right brain and leaning styles An examination into the theory of brain lateralization, learning styles and the implications for education.



Guess Your Stars Can you guess which is your zodiac forecast for today? Try my little experiment.				Plants For A Future A charity investigating the wide range of useful plants which can be grown and ecological systems of growing. Main website Database of 7000 useful plants



CV My full CV.				Other Stuff My wiki with some images of the wood-burning heating system I've got installed. Random Thoughts from a Random Fellow: My blog. ModCounter: A Greasmonkey script to count the number of mod points used in Slashdot. Merseyside Dock Action me being arrested at an Earth First! action in the early 90's. Moon phases long term variations in the length of time between full moons. A simple graphics program for teaching geometry. You can find me on Wikipedia (Salix alba), Facebook, MySpace (singsurf), Bebo (rich255), (YouTube), and WiserEarth (Salix)