David W. Deley   
Einstein
  • Software Engineer
  • Electrical Engineer
  • Technical Writer
Toward the end of the visit, Einstein asked Leo about his profession. "I'm a plumber," he said. "Good," replied Einstein, "Can you tell me where the bathroom is?"
Einstein the plumber     
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Cognitive Science

brain THE SCIENCE OF COMPREHENSION New
How We Understand and Reason About Abstract Concepts
The New 21st-Century Paradigm Shift
Surprisingly, the answer is, "No."
“It is hard to underestimate how far the idea that concepts are physically embodied, using the sensory motor system of the brain, is from disembodied Enlightenment reason—from the usual view of concepts as disembodied abstractions, entirely separate from the sensory motor system.”—George Lakoff, professor of Cognitive Science, UC Berkeley

Related:


Computer Science

Pentium Division Bug THE PENTIUM DIVISION FLAW
A computer which can't do math? After two million original Intel Pentium(TM) processors were sold in the first year, it was discovered they gave incorrect results in rare cases. It is quite interesting to study the details behind the flaw, as it brings together many aspects of computer science. Includes a detailed description of the radix 4 SRT division algorithm used by the Pentium.

dice HOW COMPUTERS GENERATE RANDOM NUMBERS
How do computers, which are completely deterministic machines, generate random numbers?

Array PAGE FAULTS AND ARRAY ADDRESSING
Understanding what a page fault is can sometimes be crucial to writing efficient code. An overview of virtual memory, page faults, and array addressing in code is presented.

CRC How cyclic redundancy codes work
Article describing how Cyclic Redundancy Codes work

Low Battery BatteryDeleyOffsite
A low battery alert for laptop computers. (free!)

EDX Spelling Checker EDX Spelling CheckerOffsite
Fast embedded spelling checker code.

Prime Numbers Find Next Prime
A routine for finding the next highest prime given a starting number. Useful for making hash tables. Also routines for generating prime numbers and for finding the prime factors of a given number.

saddle Optimize Function
Given a scalar function F, which is a function of several scalar variables {x(1),x(2),...,x(n)}, find the values of {x(1),x(2),...,x(n)} which MINIMIZE the value of function F. Code provides a choice of the Conjugate Direction Method of Fletcher and Reeves (CDM), or POWELL's method.

Engineering

Artificial Pancreas System Artificial Pancreas System
I coded the first version of an Artificial Pancreas System in C# in October of 2011 while working for the University of California Santa Barbara (UCSB) and the Sansum Diebetic Research Institute.


Inverted Pendulum CONTROLLING THE INVERTED PENDULUM
An example of a digital feedback control system. Intense mathematics.


Projects

Slicing Water Balloon with Knife Water Rocket at Launch
Digital Timer Digital Timer Control Panel
Digital Timer underside Light Dimmer


Documentation

Multi-Edit 2006 User's Guide Multi-Edit 2006 User's Guide Title Page
I was chief editor of the Multi-Edit 2006 User's Manual


DOCUMENTATION I WROTE FOR AUTOHOTKEY
AutoHotkey Logo
OTHER DOCUMENTATION I WROTE


MISCELLANEOUS TOPICS...
Professor Deley


bluebeads

A Picture Tour of Santa Barbara, California

Santa Barbara A Picture Tour of Santa Barbara, California, from a long time resident's point of view. Get the inside story of what really happens in Santa Barbara.

HUMOROUS PROSE



Newage music cross reference.
Find more of the newage music you like.
music notesmusic notesmusic notes
For people who love newage music




Solutions



Links
List of Fun Sites to visit
Spritzy Web Page For People Who Are Sensory Stimulation Deprived
For those who feel this page isn't fancy enough and yearn to see the greatest most complex gaudiest graphical page ever I made this one just for you.



David W. Deley
In the beginner’s mind there are many possibilities;
In the expert’s mind there are few.

—Shunryu Suzuki: Zen Mind, Beginner’s Mind
David W. Deley
candle
What is to give light must endure burning.
—Anton Wildgans1




[Site Map]


Books I have written:

Advanced Kindle Formatting
buy from Amazon
Brief Introduction to Unicode
buy from Amazon


Miscellaneous:

Depression as a Medical Illness


Directory Opus 11            Multi-Edit
I hand coded this website using HTML and Multi-Edit.
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Last Update: November 3, 2021

All documents at this site (sitemap) are Copyright © David W. Deley. Permission is granted to use them freely as long as the original author is cited. (Commercial companies should contact me to make sure.)


References:
1. Toward the end of the visit, Einstein asked Leo about his profession. “I'm a plumber,” he said. “Good,” replied Einstein, “Can you tell me where the bathroom is?”
https://web.archive.org/web/20130824064804/http://www.3ap.org/features/leo/leoScanlonBio6.shtml