1,726 reputation
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bio website home.comcast.net/~djmpark/…
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visits member for 1 year, 10 months
seen Jul 11 at 22:50

Author of Presentations Application for writing notebooks with custom graphics, tables, dynamic displays and other aids. Author of ExtendUnits Application. Coauthor of Tensorial. All these available at my web site for a relatively modest price.

My current interest is learning Grassmann algebra and writing a GrassmannCalculus Application in conjunction with John Browne, whose Grassmann algebra work I consider to be absolutely top notch.

I am generally interested in Mathematica as an extended technical development, preservation, documentation and communication medium - as opposed, say, to a super graphical calculator or programming language.


Apr
12
awarded  Nice Answer
Jan
12
comment Combining Graphics & ContourPlot using Show
@Oska There is this difference. The Show paradigm did not work for him the first time and he had to experiment to find a method that would work. I don't know how much time he spent doing that and posting the question here, but if his time is worth anything it must have been a reasonable bite out of $50. And the code and approach is quite a bit different, even if you can't see it.
Jan
12
comment Combining Graphics & ContourPlot using Show
@Oska I'm sorry, but you are completely wrong. It was an answer that shows how a better paradigm completely avoids the problem that the poster fell into. And $50 is trivial for a 37 MB Application.
Jan
12
answered Combining Graphics & ContourPlot using Show
Jan
6
answered How to use filling in ContourPlot
Jan
6
answered How to use filling in ContourPlot
Dec
29
answered Changing Default Color for Titles, Sections, Subsections, etc., and Items (bullet color)
Dec
29
answered Projecting curves of intersection onto a plane
Dec
28
awarded  Necromancer
Dec
23
comment What are the most common pitfalls awaiting new users?
I am not certain how to make the link above so perhaps someone can help with that. I don't know how to select a specific object to link to.
Dec
23
answered What are the most common pitfalls awaiting new users?
Dec
2
awarded  Good Answer
Nov
16
comment How to update package?
For those who would still prefer to work with the old style of units, but with many added features, I still sell the ExtendUnits package from my web site. It still has the old PhysicalConstants built in.
Nov
7
comment How could I make a drawing canvas?
@Belisarius I said that I am quite certain that one cannot write a palette type app from which one can create general useful graphics. You seem to have missed the point. Graphical presentations are simply to varied and particular for that approach to work. So spend your time on it if you want, and good luck.
Nov
7
comment How could I make a drawing canvas?
Excuse me! He wanted to easily combine many types of plots and primitives. I showed how that can be done with an existing app. He wanted a pop-up for options. The app has that, and better than you would design. He wanted a way of maintaining a permanent record for reproducing the graphics and I showed the best way for doing that. Sorry, but you guys ARE narrow minded and cheap besides!
Nov
7
answered How could I make a drawing canvas?
Nov
7
comment How could I make a drawing canvas?
@Yves Klett It's currently in my DailyReplies2013.nb so it is not lost but just censored. One trouble with most Mathematica sites is that they think only in terms of geeky small scale solutions and lack the vision to see that discovering, understanding and communicating technical ideas is what it's all about. Mathematica is the best medium there is for that but it is not a serious focus of the developers.
Nov
7
comment How could I make a drawing canvas?
Well, damn you for putting this on Hold! You just wasted three hours of my time. The question was an extremely good one and there are good answers. This just shows how narrow minded and bigoted this site is.
Nov
6
comment How could I make a drawing canvas?
I hope the "masters" won't close this or put it on hold because I intend to give an extended answer - but it will take a bit of time.
Nov
1
comment Ugly output when combining 2 plots with GraphicsRow
Sorry about the spelling. I was doing it in the middle of the night and have corrected it.