## UnkleRhaukus 3 years ago What does/can this mean \[b|a\]

1. Libniz

conditional probability?

2. hartnn

b divides a

3. hartnn

3|24

4. hartnn

a is the multiple of b

5. ganeshie8

also, bitwise or

6. CliffSedge

"b given a" or "b such that a . . ."

7. swissgirl

hmmm it has a diff meaning. I forgot what it was though. Something confusing that is forsure

8. CliffSedge

Might be part of a Bra-Ket as well...

9. CliffSedge

i.e. <a | b >

10. swissgirl

hahahahah ok gonna go get my book.

11. swissgirl

I messed up. I got it confused with \(A|_B\)

12. CliffSedge

By itself like that, I am more inclined to go with 'a divides b.'

13. swissgirl

and now that I think abt it if its referring to numbers then hartnn's explanation is correct

14. CliffSedge

er, right 'b divides a' forgot the order for a sec..

15. swissgirl

I have a feeling that the topic is Relations so ya it wld be referring to the dividing

16. CliffSedge

Who knows. Unkle is the kind of guy who will try to tell you that 0×∞ = -1, so it could mean anything to him.

17. swissgirl

hahahah true but I know he is taking some course similar to discrete math so that one of the topics covered

18. mukushla

i love that sign

19. UnkleRhaukus

according to course im taking \(b|a\) means \(a\) is divisible by \(b\) which is values of either true, or false

20. CliffSedge

Ok, that's pretty standard then. Here's a fun fact, in typology, the '|' symbol is called the "pipe."

21. UnkleRhaukus

hey i knew that

22. swissgirl

Oh That is an awesome fun fact :P

23. CliffSedge

I kinda made up that word, "typology," though; apparently that already means something else. What I meant was "type-setting."

24. swissgirl

I misread that as topology -_-

25. UnkleRhaukus

study of typing

26. swissgirl

They should totally create a study group for typology

27. UnkleRhaukus

is seven divisible by zero \[0|7=\]

28. UnkleRhaukus

false?

29. swissgirl

U cant divide by 0

30. swissgirl

Like it will just go to infinity

31. CliffSedge

@swissgirl positive infinity or negative infinity?

32. CliffSedge

Zero doesn't divide anything.

33. swissgirl

good question @CliffSedge lol

34. UnkleRhaukus

is zero divisible by nine 9|0=

35. CliffSedge

One also doesn't divide anything since it leaves the dividend unchanged.

36. swissgirl

yes it equals 0

37. UnkleRhaukus

so true?

38. swissgirl

Well I would say its true but I am not the kind of person u can rely on

39. UnkleRhaukus

and \[1|1\]is false @CliffSedge ?

40. CliffSedge

Zero is divisible by everything, but I wouldn't say that zero is *divided* by anything.

41. swissgirl

Nope that would be true 1|1 is true

42. swissgirl

1/1=1

43. UnkleRhaukus

but...

44. CliffSedge

There is a difference between "divides" and "is divisible by."

45. hartnn

i would say , just do a/b if that comes out to be integer , then true, else false

46. CliffSedge

^ that's a good computer-science algorithm

47. UnkleRhaukus

so 0|7 F 9|0 T 0|0 F 1|1 T 7|44 F 7|-42 T -7|49 T -7|-56 T

48. swissgirl

Correct

49. UnkleRhaukus

b|a is b a factor of a

50. swissgirl

Yes I would say sooo

51. hartnn

yes

52. swissgirl

hmmm the only one which seems like it isnt is 9|0

53. swissgirl

How can 9 be a factor of 0 unless anything can be a factor of 0

54. CliffSedge

Being a factor and being a divisor are two different things (but that distinction might not matter in the application you are using).

55. swissgirl

Can 9 be a factor of 0 @CliffSedge

56. CliffSedge

Yes. 9 × 0 = 0.

57. swissgirl

Gotcha

58. UnkleRhaukus

thanks everyone

59. swissgirl

Nicht kein problema