Triangular Number
Compute the nth triangular number, equal to the sum of all integers from 1 through n.
Educational purposes only. Not professional advice.
Examples
- n=3 ⇒ 6
- n=5 ⇒ 15
- n=10 ⇒ 55
FAQ
What is a triangular number?
It's the total of the natural numbers from 1 to n.
Can n be zero?
Yes, n=0 gives a triangular number of 0.
Does it handle large n?
Yes, but results grow quickly.
Additional Information
- Result unit: number