/sci/ - Science & Math

[Anonymous No.5722374]

Quick question /sci/.

What does this notation signify R / { -1 } --> R
when we are talking in terms of sets ( and functions and stuff )
Thanks.

[Anonymous No.5722378]

>>5722374
Okay.
It's actually this.

[Anonymous No.5722382]

>>5722378
It was actually a backward slash rather than a forward slash

[Anonymous No.5722383]

<span class="math">\setminus[/spoiler] is the set difference opeator. <span class="math">\mathbb{R} \setminus \{-1\}[/spoiler] is the set of real numbers not equal to -1. <span class="math">f: \mathbb{R} \setminus \{-1\} \rightarrow \mathbb{R}[/spoiler] means that f is a function from the real numbers not equal to -1 to the real numbers.

[Anonymous No.5722387]

>>5722383
Thanks!
You saved me a great deal of time and effort!