Hello Michiel!

** On Thursday 23.07.20 - 08:44, Michiel van der Vlist wrote to August Abolins:

 AA>> Testing reply with copy from original:
 AA>>
 AA>>   "... * * * <- Tribbles  ≡ ≡ ≡ <- dissected tribbles"
 AA>>
 AA>> This looked ok in OXP assuming CP437, and looks ok going out.

 MvdV> So it looks OK to you when assuming CP437 is the default. What I see
 MvdV> are three characters consisting of three stacked dashes. Looks OK to me
 MvdV> too. But /is/ it OK? I don't know, I do not know what a tribble is or
 MvdV> what it is supposed to look like, let alone a dissected trible.

Not familiar with the original StarTrek TV series at all?


 MvdV> However... the author of the original message says it is supposed
 Mvdv> to be a single dash and that is how it looks like when assuming
 MvdV> CP850.

I thought the single dash comment was unusual too.  Stacked-dashes just  
made more sense based on the tribble joke.  And OXP seemed to present alt- 
240 just fine.


 MvdV> Your assumption that CP437 is the default turns out to be wrong in this
 MvdV> case.

In actuality, I can't be sure *what* default codepage OXP is using when  
*reading* the original incoming message that fails to provide the CHARS  
kludge.  But upon reply, OXP seems to default to CP437 going out.

I didn't even realize that ð (3 stacked dashes) was an available  
character.    It seems to resemble the hamburger used for adaptive/ 
reponsive websites as the symbol to activate the main Menu.

The ð char seems to be intented as a math symbol, an area that was not  
really my thing using DOS.

I wonder how many of the 3-digit and 4-digit alt-nnnn chars below (from a  
collection of math symbols which the 3-stacked-dashes is found) will  
translate properly going out:

Alt Code Symbol Description
Alt 48 - 57 0 - 9 zero to nine

Alt Codes for Basic Operators
Alt Code Symbol Description
Alt 43 + Plus Sign
Alt 45 - Minus Sign
Alt 0215 x Multiplication Sign
Alt 0247 ö Obelus / Division ign

Alt Codes for Pers
Alt Code Symbol Description
Alt 37 % Percentage Sign
Alt 0137 % Per mille (per thousand)

Alt Codes for Bracketing
Alt Code Symbol Description
Alt 40 ( Open Bracket
Alt 41 ) Close Bracked

Alt Codes for Degree of Accuracy
Alt Code Symbol Description
Alt 241 ñ Plus or Minus

Alt Codes for Fractions
Alt Code Symbol Description
Alt 47 / Fraction seperator
Alt 0188 ¬ Quarter
Alt 0189 « Half
Alt 0190 _ Three quarters     <==[does not render in OXP]
Alt 46 . Decimal Point

Alt Codes for Equality
Alt Code Symbol Description
Alt 240 ð Exactly Identical
Alt 61 = Equals
Alt 247 ÷ Approximately equal

Alt Codes for Inequality
Alt Code Symbol Description
Alt 60 < Less Than
Alt 62 > Greater Than
Alt 242 ò Greater than or equal
Alt 243 ó Less than or equal

Alt Codes for Powers
Alt Code Symbol Description
Alt 251 û Square Root
Alt 252 ü Power n
Alt 0185 1 To the power of 1  <==[does not render in OXP]
Alt 0178 ý squared
Alt 0179 3 cubed              <==[does not render in OXP]

Angles and Trigonometric Alt Codes
Alt Code Symbol Description
Alt 227 
 Pi
Alt 248 ø Degree sign

General Mathematical Symbols
Alt Code Symbol Description
Alt 35 # Number
Alt 236 ì Infinity
Alt 230 æ Micro
Alt 228 ä Sum
Alt 239 ï (Suggest definition)

Integration / Integral Sign
Alt Code Symbol Description
Alt 244 ô Top half
Alt 245 õ Bottom Half


  ../|ug

--- OpenXP 5.0.45