[Aimmath-developers] Trig package added to develop_2_1

[Greg G. <gr...@ma...>]

Dear all,

I've just added changes and new files for my Trig package that I first
made mention of about 6 months ago on the Jiscmail list.

Briefly ...

aim/Trig.mpl ... based on Neil's aim/Diff.mpl
                 defines two fairly specific types of trig. question
                 and corresponding test/mark functions.
aim/Util1.mpl .. some utility functions mainly used by/with Trig package
                 also added SimplestDecimal function described in
                 response to Gustav's query a few days ago
Aim.mpl
Make.mpl ....... small modification to allow comments in PackageList file

PackageList .... added the two new package files and a few comments in
                 the header

aim/Util.mpl ... added `aim/ExpandExamplesPath` ... this expands 
                 EXAMPLES at the beginning of a path of a quiz included
                 via the i> or include> tag, to the absolute path of
                 the examples directory (see below)

aim/Compile.mpl  used `aim/ExpandExamplesPath` to expand EXAMPLES for
                 include>d quiz files

Then at the root AIM on CVS (which corresponds to ROOT), I've added
two new directories as I proposed a month or two ago:

examples/
images/

Under examples/ I added a directory of examples for the Trig package:

examples/Trig/

I consider the examples part of the documentation of the Trig package.
Some of the examples use some pre-generated .gifs which I `stole'
(with acknowledgement) from one of Neil's .zip archives. The two .gifs
I use have been added to the images/ directory.

I'd appreciate any comments you might have about any of this.

In particular, I'd be interested to know if people on Windows or 
Mac/OSX boxes (Chris, Jon, ...) have any problems with the example 
quiz files.

I have a number of other things to commit ... but I'll be cleaning them up
a bit first.

  Regards,
  Greg