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Re:New Kind of Paper by kzrdude on Wednesday June 23, 2021 @03:40AM (#27601861)
Nobody writes asterisks like that in handwriting - is that to help the ocr? We just use an × for multiplication, really.
Re:New Kind of Paper by nemetroid on Wednesday June 23, 2021 @03:45AM (#27601894)
Are you sure about "nobody"? As a corollary, I've only ever used × to indicate the cross product of two vectors. For scalar multiplication, ⋅ is the standard symbol in my country (and many others).
Re:New Kind of Paper by kzrdude on Wednesday June 23, 2021 @07:05AM (#27603073)
I guess I'm being called out for not handwriting a lot myself anymore either. Yes, I'd use the centered dot too. Anyway, the point is that the asterisk is not what we use in handwriting.
Re:New Kind of Paper by ajuc on Wednesday June 23, 2021 @03:47AM (#27601904)
Depends on the country. In Poland it's usually nothing for multiplication:

    (x+3)(10-y)
then dot, then asterisk. Nobody writes "x" for scalar multiplication cause it's easy to mistake it for the variable x. What do you mean by 2xy? 2 * y or 2 * x * y?

Another cultural difference is how 7 and 1 is written - in USA you write 7 with 2 strokes and 1 with 1 stroke. In my country 7 is always crossed (always has 3 strokes) and 1 has 2 strokes.

And variable z is usually crossed in equations to distinguish it from 2 (but that varies regionally).

Re:New Kind of Paper by fratajcz on Wednesday June 23, 2021 @04:03AM (#27602017)
In this case, most people will write the variable x with curved ends (𝑥) and the operator with straight ends.
Re:New Kind of Paper by leephillips on Wednesday June 23, 2021 @12:29PM (#27606388)
That was how I learned to notate multiplication in high school or earlier. It’s how it’s done in all the mathematical literature or textbooks I’ve ever seen. And people only started using * when they started programming computers.
Re:New Kind of Paper by ajuc on Wednesday June 23, 2021 @02:47PM (#27608430)
You might be surprised then that we don't even use . as a decimal point :)
Re:New Kind of Paper by mlajtos on Wednesday June 23, 2021 @04:44AM (#27602274)
I write asterisk like that. :) But middle dot "·" works as well. Problem with "×" is that it is basically letter "x". This ambiguity applies to more characters, just a simple example – a lot of Americans write "1", "l", "I", "|" as one symbol. This is fine when you have context, e.g. a phone number, but programming language is a mixed bag where context isn't much of a help.
Re:New Kind of Paper by zozbot234 on Wednesday June 23, 2021 @05:01AM (#27602359)
You don't write letter x in handwriting. You always write cursive/italic x that cleanly solves the ambiguity with × sign. Similarly, "l" is handwritten and | is "broken" in the center.
Re:New Kind of Paper by mlajtos on Wednesday June 23, 2021 @05:39AM (#27602580)
Even though I am not German, I am aiming for Grundschrift [0] with letters and numbers since it is a close match for how I am writing. The broken pipe makes sense though.

https://en.wikipedia.org/wiki/Grundschrift

Re:New Kind of Paper by tsimionescu on Wednesday June 23, 2021 @06:18AM (#27602804)
In my handwriting, I always write x as the typed letter. The cursive variant feels very awkward for me. In my country, after primary school, we always use a dot for multiplication (or,in maths with single-letter identifiers, no symbol at all - a multiplied by b is 'ab').
Re:New Kind of Paper by augustk on Wednesday June 23, 2021 @03:59AM (#27601988)
At least in some European countries we use a dot instead (which doesn't look like a variable named "x").

https://en.wikipedia.org/wiki/Dot_operator#Notation_and_term...

Re:New Kind of Paper by dariosalvi78 on Wednesday June 23, 2021 @04:04AM (#27602028)
Actually using asterisks for multiplications is something you do on computers not when writing on paper, or at least this is how I was taught at school and university
Re:New Kind of Paper by leephillips on Wednesday June 23, 2021 @12:26PM (#27606342)
We don’t use any operator, since the parentheses are there. If we’re feeling nervous, maybe a centered dot.