David
J labs are really a good way of exposing. A lab displays some text,
some expresssions and you can add your own in response to the audience.
Make sure your font is LARGE for easy viewing.
Ideally you should devise your own lab (very easy) with examples
of interest to your audience, specially as you conclude.
Define an invertible verb, with an example.
dfh=: 16&#.@:('0123456789abcdef'&i.) NB. decimal from hex
dfh'ff'
255
Then ask: how about hex from decimal, the inverse?
dfh inv 255 NB. Inverse of the _same_ verb
ff
"I don't need to write it, ma! The system knows it!"
They will forget everything, except that!
~ Gilles
---------- Original Message -----------
From: Roger Hui <[email protected]>
To: Chat forum <[email protected]>
Sent: Tue, 17 Feb 2009 16:24:00 -0800
Subject: Re: [Jchat] Slide Presentation
> See the following labs:
>
> A J Introduction
> A Taste of J (1)
> A Taste of J (2)
> An Idiosyncratic Introduction to J
> An Introductory Course in J
>
> ----- Original Message -----
> From: David Vincent-Jones <[email protected]>
> Date: Tuesday, February 17, 2009 15:46
> Subject: [Jchat] Slide Presentation
> To: JSoftware <[email protected]>
>
> > Is there an "Introduction to J" slide presentation anywhere?
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
------- End of Original Message -------
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
