Hello Henry;

(I'll leave the irony of non-programmers thinking they can get a handle on a programming language aside.)

How do they explain their confusion, if not as a sign they could use some tools to look deeper?

I also am thinking that $x is too basic and too important a concept that really shouldn't wait for spontaneous discovery. 'What is its shape?' seems like something an instructor would use to cue students.

Henry Rich wrote:
These are non-programmers who have no idea that they need
to dissect anything.  Getting $x to occur to the average student
would be far too much to hope for.

Let the user specify as many colors as he cares to.  As many
different ranks can be distinguished as her heart desires.

No way to tell the rank of an empty, but the rest is worth doing.

Henry Rich
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Randy MacDonald
Sent: Friday, October 03, 2008 3:19 PM
To: Programming forum
Subject: Re: [Jprogramming] Difference between 5^100x and x: 5^100

Hello Henry;

An interesting idea, but where does it end? Do we need to immediately see the difference between, for example, i. 2 2 and i. 1 1 1 2 2 which both have the same display value. Is $x too much of a bother for students who need to dissect a value? I sure hope not.

Henry Rich wrote:
Does it meet the needs of people requesting colo(u)r?
No.  I'd like for students to be able to see immediately whether
any result is an atom or a 1-item list.  It is confusing to them
that they look the same.
I can use linrep to show the difference - a good idea, and
I'll try it - but it would be better if they could just
immediately see the difference in any result.

Henry Rich

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Brian Schott
Sent: Saturday, September 27, 2008 1:00 AM
To: Programming forum
Subject: Re: [Jprogramming] Difference between 5^100x and x: 5^100

Yes, linrep is even better than having to name each noun.
Does it meet the needs of people requesting colo(u)r?

   linrep ''
''
   linrep i. 0 3
i.0 3
   linrep 3{.i. 0 3
3 3$0


On Sat, Sep 27, 2008 at 12:35 AM, Roger Hui
<[EMAIL PROTECTED]> wrote:
Watch this:

  linrep=: 3 : '5!:5 <''y'''

----------------------------------------------------------------------
For information about J forums see
http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see
http://www.jsoftware.com/forums.htm
--
--------------------------------------------------------------
----------
|\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
|/\| ramacd <at> nbnet.nb.ca |
|\ |                         | The only real problem with APL is that
BSc(Math) UNBF'83            | it is "still ahead of its time."
Sapere Aude                  |     - Morten Kromberg
Natural Born APL'er          |
-----------------------------------------------------(INTP)---
-{ gnat }-



----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm


--
------------------------------------------------------------------------
|\/| Randy A MacDonald       | APL: If you can say it, it's done.. (ram)
|/\| ramacd <at> nbnet.nb.ca |
|\ |                         | The only real problem with APL is that
BSc(Math) UNBF'83            | it is "still ahead of its time."
Sapere Aude                  |     - Morten Kromberg
Natural Born APL'er          |
-----------------------------------------------------(INTP)----{ gnat }-



----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to