Question

what do N, Z, and Q mean in math?

Answer 1

because i think that N is numbers over 0, but not decimals. So like 1 2 896 45, right?

Answer 2

okay, so all numbers above 0? including deciamals?

Answer 3

\[\mathbb{N} \mathbb{R} \mathbb{Q}\]

Answer 4

Natural number only include number from 1to countable number

Answer 5

those are just sets of numbers.
\[\mathbb{N}\text{ only includes numbers ranging from 1,2,3,4,...,; only the positive integers}\]

Answer 6

i know natural numbers dosn't include decimals. but do z intergers?

Answer 7

and then what are rational numbesr. all numbers, including negative?

Answer 8

Z stands for Zahlen

Answer 9

I think Z includes the integers, which include 0 and the negative integers along with the postive integers.

Answer 10

No integers doesn't include decimals

Answer 11

rationals include decimals, and reals include the irrational decimals :-D

Answer 12

Z= positive and negative numers, but no decimals
N= 1 to wherever, but no decimals, and no negatives
Q = all numbers, negatives, decimals, etc.

Answer 13

is that right?

Answer 14

q doesn't include irrational

Answer 15

Q doesn't include irrational numbers like pi and sqrt(2)