what's this symbol on Space-cadet Keyboard

[Xah Lee]

in the Space-cadet Keyboard
http://xahlee.org/kbd/lisp_keyboards.html

what's the front symbol for the key “:”?

it looks like section sign “§” but doesn't seem to be.

Xah

[Malaclypse]

I don't have one of these, but I note that most of the Front symbols appear
to be mathematical. I suppose the one you refer to is the path integral.

Regards

[Xah Lee]

Thanks.

I thought path integral too but doesn't seem to be, since there's not
integral or sum, which are more basic.

this keyboard owner webwit has posted a close up of that key, see
bottom here:
http://deskthority.net/viewtopic.php?p=23509

it doesn't seem to be any of APL symbols, and isn't a currency sign
that i checked wikipedia with... my quick search of lisp machine doc
didn't turn out any doc on keyboard, mostly just about lisp language.

Xah

[Malaclypse]

On Fri, 28 Oct 2011 22:03:30 -0700 (PDT), Xah Lee <xah...@gmail.com> wrote:
> I thought path integral too but doesn't seem to be, since there's not
> integral or sum, which are more basic.

I believe the Front-/ symbol is integral, am I mistaken?

> http://deskthority.net/viewtopic.php?p=23509

This looks like it could very much be a section symbol, especially adjacent
to dagger and double dagger.

> it doesn't seem to be any of APL symbols, and isn't a currency sign
> that i checked wikipedia with... my quick search of lisp machine doc
> didn't turn out any doc on keyboard, mostly just about lisp language.

Check the Chinenual 10.1.3 (6 Ed) 'The Character Set'. I have a 1978
copy of the manual and the special glyphs are the same, although some
of the control char assignments differ.

The Lisp Machine character set is a version of the ITS character set
for the Knight TV terminal system, which in turn derived from Stanford
AI Lab's SAIL character set. Of course the machine could have displayed
alternate glyphs in other fonts, but those 33 glyphs are in the basic fonts.

Most of the special glyphs are found on the Knight keyboard as well,
except for delta and gamma, but there they are all on TOP of the keys.

Probably important to the history of the Space Cadet keyboard is that
it was designed by a committee of prospective users at MIT, including
the Dynamic Modeling group and the Media Lab in addition to AI. From
what has been written here before, pretty much every reasonable suggestion
was incorporated. I don't think all of the keys or glyphs were ever used
by Lisp Machine system software, but as long as they were assigned codes
user programs could have used them.

The manual I have only shows 33 assigned special glyphs, but 96 codes are
reserved for the future, so all of the glyphs on the keyboard could have been
assigned later on.

Regards

[Xah Lee]

so, did the manual say what character is that?

> Check the Chinenual 10.1.3 (6 Ed)

Chinenual? Is that a joke? i can't find Chinenual on the web after 1
minute search.

thanks for the other info.

Xah

[Tim Bradshaw]

Xah Lee <xah...@gmail.com> wrote:
>
> Chinenual? Is that a joke? i can't find Chinenual on the web after 1
> minute search.
>
> thanks for the other info.
>

It's probably chinual or perhaps chineual. Anyway:
http://bitsavers.org/pdf/mit/cadr/chinual_6thEd_Jan84/

[Xah Lee]

On Oct 31, 6:01 pm, Tim Bradshaw <t...@tfeb.org> wrote:

>
> It's probably chinual or perhaps chineual. Anyway:http://bitsavers.org/pdf/mit/cadr/chinual_6thEd_Jan84/

hi Tim,

thanks for the clarification.

Though, still it doesn't talk about what symbol is that on the
keyboard.

from the few minutes scans of lisp machine manuals, including that
Chineual one, they seems to be just documentation of lisp language.
Doesn't talk about keyboard.

Xah

[Tim Bradshaw]

Xah Lee <xah...@gmail.com> wrote:

> from the few minutes scans of lisp machine manuals, including that
> Chineual one, they seems to be just documentation of lisp language.
> Doesn't talk about keyboard.
>

There is mention of the character set, but I could not find a
plausible-looking character.