R = real numbers, Z = integers, N=natural numbers, Q = rational numbers, P = irrational numbers.

What is lowercase N in math?

Lowercase n is usually used for integers whereas x is used for Real numbers and z for Complex numbers. But it’s not set in stone. Any other letter could be used. Math in other languages do use other letters.

What does N mean in math algebra?

Share this page! Algebra is about using pictures or letters to represent numbers. … In an equation, N represents a specific number, not any number. N + 9 = 12 means N is a number which, when added to 9, must give the answer 12. So N can only be the number 3 because only 3 + 9 is equal to 12.