Math Is Fun Forum

Al-Allo

Member

Registered: 2012-08-23

Posts: 324

Definition question

Hi, can somebody tell me the definition of : and,or

Thank you

Last edited by Al-Allo (2013-08-24 06:29:53)

Bob

Administrator

Registered: 2010-06-20

Posts: 10,643

Re: Definition question

hi

Is there a word missing in that question?

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

Al-Allo

Member

Registered: 2012-08-23

Posts: 324

Re: Definition question

yes, it was definition ^^

Bob

Administrator

Registered: 2010-06-20

Posts: 10,643

Re: Definition question

I thought it might be.

AND:

a AND b is true only when both a and b are true.

So the truth table is

T AND T is T

T AND  F is F

F AND T is F

F AND F is F

Using 0 for F and 1 for T

1 AND 1 is 1
1 AND 0 is 0
0 AND 1 is 0
0 AND 0 is 0

OR:

a OR b is True if either or both is true

T OR T is T
T OR F is T
F OR T is T
F OR F is F

1 OR 1 is 1
1 OR 0 is 1
0 OR 1 is 1
0 OR 0 is 0

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob