## Richard Morris

Interactive geometry programs, mathatical programming and mathematics tuition.

rich@singsurf.org

# Online Curve and Surface programs

Advanced demo, covers all types of curves and surfaces.

# Jep

A Java library for parsing, evaluating mathematical equations.

Core Jep
Jep is a small fast mathematical parsing and evaluation library. It suports various datatype including, BigDecimals, strings and complex number and has a wide rang of built in functions. It is highly customizable allow diferent syntaxes for equations. I am co-developer and its available from singularsys.com.
Examples: The function plotter applications on the left have all been made using Jep. A console applet allows an interactive session.
GWT Jep
GWT Jep is a javascript version of the core Jep library using the Google Web Toolkit.
Jep Extensions
JepExtensions Adds many other features to the core jep library.
• matrices
• very fast evaluation over reals
• differentiation and symbolic manipulation
• Fields Allow calculations over specific fields such as the rationals.
• structured programming with for and while loops
• Mathml

# Kaleidoscope

Explore the 17 symmetric 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.

# Cubic surfaces

All the surfaces defined by cubics equations.

# Stepney

My father Derek Morris's page on Early Modern Stepney History. With details on his research into Mile End Old Town, Wapping, and the East End of London in the 18th and 19th centuaries.

# Fiddles

Some javascript experiments developed using jsfiddle.

My public Fiddles

And a JavaScript extension

My full CV.

# Papers

Some of my mathematical papers.

# Other Stuff

Los'Samba Samba band based in Lostwithiel and Lerryn, South East Cornwall.

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.

Lerryn.net My local village website, which I help administer.

Lerryn Setsudo Ki Aikido the Aikido group I teach.

Harpur Hill Resident Association A community website I've helped build.

Flash Gravity Game simple game in Flash, made using open source tools and raw action script.

You can find me on Wikipedia (Salix alba), Facebook, (YouTube), and Slashdot (pfafrich).

I worked with Plants For A Future a charity investigating the wide range of useful plants which can be grown and ecological systems of growing. I still work a bit with the Cornwall Site near St Veep, Lerryn, Lostwithiel, Cornwall.

I have a stackoverflow accounts on the main SO, maths and arduino stacks.