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VK3ABK > HELP     27.11.05 08:07l 87 Lines 3805 Bytes #999 (0) @ WW
BID : 12333_VK3BBS
Read: GUEST
Subj: Suffix 2 again.
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<ON0AR<HS1LMV<CX2SA<W4JAX<N2BQF<VK3FIS<
      VK3BBS
Sent: 051126/2347Z @:VK3BBS.#MEL.VIC.AUS.OC #:12333 XFBB7.04h Bid:12333_VK3BBS
From: VK3ABK@VK3BBS.#MEL.VIC.AUS.OC
To  : HELP@WW

Hello all.

I sent a bulletin asking about a disappearing  (^2) as in E=mc.

Quoted in part...

"This was strange, as the 'c^2' appeared as 'c squared' in the 'normal way;
that is with the 2 as a suffix (little two). I can't remember seeing this
before, but it may not be unusual elsewhere."

"But, even stranger, when I scrolled (page up) the bulletin to read it again
and print it, the 2 had disapeared, and only E=mc remained."

So far, I have seen several helpful replies.

From Clyde, G0SYR...

"What YOU see on YOUR screen when the BBS sends you an ascii
character is down to the software you choose to use, the way 
you have set it up and which font you have chosen to use.
As you can see this 'squared' symbol when the BBS first 
sends you the file, and when you print direct, then your 
system system must be receiving and displaying the character 
correctly. As scrolling up/down involves copying things in 
and out of memory it would seem likely that the software 
you are using has the bug/feature of filtering or changing 
the codes that are copied and stored when scrolling, probably 
only codes in the range 128-255 get messed with. 
There are many files recently contain this character and 
hopefully all the 'squared' symbols disappear when you scroll.
It would be interesting to hear what happens to G8MNY's ascii 
circuit diagrams as these make extensive use of the ascii
character codes above 127 so I wonder what you see when you 
scroll these drawings up and down?? and what software you are
actually using?"

I have resent part of Clyde's reply as, in my opinion, it is a complete
answer and will interest most of us. I had made a note after considering the
problem; 'my comp/tnc can read mc but not write it'. Clyde agrees with this.

I have no trouble with other 'symbols', Clyde, and the G8MNY bulletins are
received as John intended. Provided 8BITCONV ON is set in the TNC parameters.
I haven't been using the CHR$ (253), as all bulletin authors seem to use ^2.

Clyde also sent...

"E=mc˛

and if MY packet software doesn't mess with it you will
be able to see the 'squared' symbol."

Well, Clyde, I received E=MC˛ (CHR$178) not (CHR$ 253), so I would like to
know what others saw. Maybe this is another bug in my software. Yes, I
believe my problem is a bug in my com prog. I use 'paKet 6' which is a good
'hands on' program that is also as 'automatic' as I could wish. This is the
only 'bug' I know of, if that's what it is. My TNC is a PK-88 but I don't
think this plays a part in the screen display.

I can't access FIXEDSYS, John.

So, that answers some of the questions from John, VK6JY, who also considers
'superscript' a better term than 'suffix'. Yes John, I agree, but suffix was
the first thing I thought of!  I suppose power, exponent or index are the
technical terms. Remember our laws of indices in high school?

In another bulletin I wrote...

"Now I find that bulletins from VK2ZRG, DF3VI, GM7HUD, and G0TEZ, all show
the same thing. Each bulletin is Titled E= mc squared with the 2 in the
'normal' squared position. But each writer then sends the equation with m^2
as we usually do. So, this seems to be 'normal' on packet. But how can this
be, and how can I receive the 'normal' c squared in the Title."

"Does anyone else see the Title as I do, and what happens when you scroll.
And what do you see when you scroll or print from the receive buffer?"

But this may have been missed. Can someone send a comment on the use of ^2
which seems to be prefered. And what is received in Clyde's and my bulletins.
Is the extended ASCII (253) the symbol to use, and why is ^2 so popular?
I have used both symbols throughout this bulletin to gauge response to what
is received. Replies appreciated.

73. Dick. VK3ABK.


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