Multiplication sign, using '*' or 'x'

In mathematics, the operators provided on keyboard are quite clear for addition, subtraction and divide:
+  /
.The multiplication sign
*
might be familiar as the multiplication for programmer, but I'm not sure about ordinary user. I don't know if I should use*
orx
for multiplication.The purpose is to provide user detail of how each field will be used:
One drawback I can think of is if using
x
might rely on font face and if user changes the font,x
might not be appear like multiplication sign.Also, by the standard
*
(asterisk) should be used to multiplication, but I'm not sure about its readability.Please don't expect users to actually calculate the rates themselves! (Room Price + Charge) x Net Rate %, ...
@Wousser That is just a description of how each Apply Type will be used to calculate. The program will do it.
Why not use `×`?
@hippietrail at the time i was writing this question. i didn't know that sign existed :) Thanks
good reference for other codes https://dev.w3.org/html5/htmlauthor/charref

Roger Attrill Correct answer
10 years agoIt would certainly be a mistake to use the letter
x
as the multiplication symbol asx
itself often denotes an algebraic term:e.g. compare
x x y = c
x x y = c
vs
x × y = c
x × y = c
The
×
or×
or&#D7;
character looks like this: × so it is a proper cross, as opposed to the letterx
(ex) or*
(asterisk) symbols which are a lazy approach and don't create symmetrical symbols about the major axes.The
×
version is simply the friendly version of the same code.For additional reference, for divide you can also use
÷
or÷
to get ÷For minus you might expect to use direct from the normal key, but there is a separate code for that too
−
− which aligns it vertically with the keyboard plus symbol, so you get ( −+−+
) instead of the keyboard minus and plus, which may not be aligned depending on the font ( ++
).You can get the plus/minus via
±
or±
± .There is another Wikipedia entry for the symbol itself, which currently consists of the information below:
(sorry, this is an image  so links are not real!)
Would be kind of nice if those were the symbols you got when using the keys on the numpad.
@Svish You mean pressing '/' would give you ÷ and pressing '*' would give you ×?
Looks to me like you're raising X to the X then multiplying by Y
There is a semantic difference for multiplication on nonscalars. For vectors `A × B` (cross product) is not the same as `A ∗ B` (dot product).
Ah, I never knew there was a Unicode for either the '×' OR '÷' symbol. (Well, TBH i've never really looked). Now I know.
also, don't forget to use `∗` (∗) instead of an asterisk (*)
@root45 exactly. except the keys should have the correct print too of course.
and calculator software etc etc should react appropriately and such...
Roger, is there a better alternative to using the < and > keys on the keyboard?
got them. < < < < for "less than". > > > > for "greater than". https://dev.w3.org/html5/htmlauthor/charref
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Content dated before 7/24/2021 11:53 AM
msanford 10 years ago
I always had the impression that "*" was used as a multiplication operator because "•", commonly used in algebra, was hard to find on older (particularly PC) keyboard layouts, but looked similar enough to be interchanged. I am not confident that * is a good multiplication operator for human consumption.