Question

what is this symbol?

Answer 1

it is sown in the example of
http://en.wikipedia.org/wiki/Random_variable

Answer 2

It means "maps to", so if you have a function x |-> 3x+2, then every value of x is mapped to 3x+2. Does that make sense?

Answer 3

sorry I didn't get it @Traxter can you please teach me

Answer 4

is -> & |-> are both same?

Answer 5

No, that was just my attempt at drawing the arrow lol.

Answer 6

If you have a mapping:
\[x\mapsto f(x) \]
It's basically just a way of saying "every value of x is mapped to a value f(x)".
So if f(x)=2x, then:
\[1\mapsto 2\]
\[2\mapsto 4\]
\[3\mapsto 6\]
etc.
Does that make more sense?

Answer 7

yesssssssss

Answer 8

Brilliant :)

Answer 9

thanks

Answer 10

No problem at all.