Introduction

Electron Cloud Mapper
Version 1.0 ALPHA
Copyright © 1992 Yuxin Ruan and E. Kenji Takeuchi.  All Rights Reserved.
System 7 Savvy
System 6 Compatible
32-bit clean
68040 compatible
FPU compatible

Electron Cloud Mapper (ECM) draws 2-D or 3-D images of a hydrogen at any energy state.

Compatibility

System Compatibility

ECM is compatible with System 6.0.4 and higher, and is System 7 Savvy.

Apple Events

ECM only recognizes the ‘quit’ core Apple Event.  However, more can be entered upon request.

Quadra/68040

ECM is compatible with the 68040’s write-through cache.

Math Coprocessors: 68881, 68882, and 68040’s

ECM uses SANE, which makes it compatible with all math coprocessors.  Users of Macintoshes with a math coprocessor will notice significant speed increases.

PowerPC

ECM will be compatible with the PowerPC microprocessor in 68040 emulation mode.  A native version will DEFINITELY be available soon!

Map Modes

ECM can plot the electron map in two way:  scatter (probability represented by the density of dots) and color (probability represented by colors).  Color mode is available only on Macintoshes with color or gray scale capabilities.  Color mode results in beautiful designs!

Turbo Mode

Turbo Mode is speeds up scatter drawing time by lightening the processing load.  This involves the deactivation of a few features - ‘Particle Type’, ‘Plot For Count’, ‘Plot One Point’, and ‘Sound’.

Custom Orbitals

There are three “pre-defined” orbitals, s, p and d already available.  However, users can go a step further by defining their own orbitals.  You may have noticed that the f orbital is not among the pre-defined ones.  The f orbital as well as virtually any theoretical orbital can be obtained by defining a custom orbital.

Defining a custom orbital is extremely easy.  It requires you to only specify two variables.  One is the L variable which determines the orbital type such as s, p, d, f, etc.  This should be any non-negative integer (whole number) as long as it does not get too large (19 or 20 is about the largest value before overflow).  The second variable M has to be a non-negative integer that is less than L.

Keyboard Equivalents

• F1 - Undo*

• F2 - Cut*

• F3 - Copy*

• F4 - Paste*

• Clear/Backspace/Delete - Clear

• Help - Help*

• Page Up - Equivalent of clicking on the page up region of a scroll bar.*

• Page Down - Equivalent of clicking on the page down region of a scroll bar.*

*Available only on extended keyboards.

Authors

Yuxin Ruan is the original author of the PC version of ECM.  However, in the middle of the project he ported it to Macintosh with the help of Kenji Takeuchi.

Where To Reach

Kenji Takeuchi:

E. Kenji Takeuchi

5542 S Harper Ave

Chicago, IL 60637-1830

U.S.A.

E-mail:  takeuchi@uhuru.uchicago.edu

Everyone Else:

c/o Kenji Takeuchi

Updates

Updates can be obtained through online services, shareware distributers or direct from the author.  Most updates after the first release version will probv only be maintenance upgrades for new System Software enhancements.

More Help

More help is available if the System version you are currently running supports Balloon Help.  If you find this online manual inadequate, please write to Kenji Takeuchi.

Credits

Mathematics:
Yuxin Ruan
Programming:
Yuxin Ruan (PC)
Kenji Takeuchi (Macintosh)
Design and Interface:
Kenji Takeuchi
Graphics Design:
Kenji Takeuchi
Mike Kim
Audio:
Kenji Takeuchi
Online Help:
Kenji Takeuchi
Review:
D. Derbes
J. Keane
Mike Kim
Steve Crutchfield
Werner Krebs
The University of Chicago

KAMEHAMEHA!