The backslash symbol, \, in mathematics means exclusion of quantity, also known as relative complement or minus quantity. … The backslash symbol, \, in mathematics means exclude set, also known as relative complement or minus set. denotes the set of elements that are in set and not in .

## What does the backslash mean?

: a character \ used especially in computer programming.

## When would you use a backslash?

Outside of quoted strings, the only common use of the backslash is to skip (escape) a newline immediately following it. In this context, it can be called a continuous line because the current line transitions into the next. Some software replaces the backslash + newline with a space.

## What does ø mean in mathematics?

The letter Ø is sometimes used in mathematics as a substitute for the symbol ∅ (Unicode character U+2205), referring to the empty set defined by Bourbaki, and sometimes in linguistics as a substitute for the same symbol used to represent a zero is used. … The slashed zero is an alternative glyph for the null character.

## How do you do a backslash?

To type the backslash symbol on your keyboard, hold down the Alt key and type the backslash alt code 92 on the numeric keypad, then release the Alt key. For Mac users, press your keyboard, Alt+7 or Alt+Shift+7 or Alt+Shift+/. Which key combination you use depends on your keyboard type.