On Mar 25, 2008, at 14:14 , Randy MacDonald wrote:
Hello Devon;

Although this is what I aspired to do in a high school programming project back in the 70s, it strikes me as far too advanced for a newbie. If your actual intention was to scare him off, I'll be a coward and not interfere. There are many steps between what Bart used and what you used, many ways to maintain the endorphin level.
I don't scare easily :-)

The only thing I don't understand in it is the '1'
I did the following

6j99
easy, just a complex number
i:6j99
oh I get it, similar to matlab, scilab etc.
o.i:6j99
huh? oh, I see, times  pi
1 o.i:6j99
huh? Ah got it. If you put 1 before, you get the sine. Well why not.

+/~
What's this. Let's try
+/~ 1 2 3 4
Oh, I see, some sort of matrix creation.

Ok, I'm done.

Thanks for the challenge :-) :-)



My only comment to Bart's sentence is: is this normal?

Devon McCormick wrote:
OK - see how you do with one of my favorites:

   load 'plot'
   pts=. +/~ 1 o. i:6j99    NB. What does this "line noise" do?
   'surface' plot pts

On 3/25/08, Bart van Deenen <[EMAIL PROTECTED]> wrote:

Just being extrovert here: I'm thoroughly enjoying myself with this J language that I started playing with this morning. I've been programming
for
20 years or so, and this is really new and exciting!

I'm shocked that I'm already understanding the bit of line noise below :-)

+/?1000#2

Bart

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---------------------------------------------------------------------- -- |\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
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