Cool! I only knew this as the symbol of perpendicularity of lines in geometry. Well, I guess it's hard to confuse that with addition. https://en.wikipedia.org/wiki/Up_tack
-
-
-
On a second thought, it might be confusing when it's used with vectors, like a⃗⊥b⃗ or a⃗+b⃗.
End of conversation
New conversation -
-
-
Ahhh... that explains it. This joins other attempts at redacting Christianity-relates symbols, such as the Bishop in Chess (translated to Hebrew as "Runner"). FWIW my daughter was using the normal "+" sign at early school, hopefully this redaction is going away.
-
"runner" is the name of the piece in many languages, including German and Dutch
- 1 more reply
New conversation -
-
-
Well that looks like a nail on the cross..
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
just for the sake of it: "+" does not resemble a "christian" (latin) cross, it would be called a greek cross, also "+" is short for "et" as is &
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Reminds me of the
#programming language APL. It's been a decade or so, but I _imagine_ this would be interpreted as the opposite of subtraction. lol Lets wiki it. OK ⊥ AKA Decode "Value of a polynomial whose coefficients are B at A" So I was a bit off! https://en.wikipedia.org/wiki/APL_syntax_and_symbols#Dyadic_functions …Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Religion shouldn't interfere with Science (/Education) and Politics.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Israeli elementary schools still use it. In high school we switch to the international symbol
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
I'm a practicing Jew with a Master's in math and 39 years of teaching experience. I have worked with students from Orthodox day schools. I've never seen or heard of this before.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.