Problem 45833. Triangle Numbers (★★)

Created by Anirban Pal

Solve Later

(copy of problem 5)

Triangle numbers are the sums of successive integers. So 6 is a triangle number because

 6 = 1 + 2 + 3

which can be displayed in a triangular shape like so

      *
     * *
    * * *

Thus 6 = triangle(3). Given n, return t, the triangular number for n.

Example:

 Input  n = 4
 Output t is 10

Solve

Solution Stats

221 Solutions
90 Solvers

Last Solution submitted on Dec 05, 2023

Last 200 Solutions

Solution Comments

Show comments

Problem Recent Solvers90

Suggested Problems

Find the longest sequence of 1's in a binary sequence.

6324 Solvers
Convert a vector into a number

600 Solvers
Vectors counting by 2

500 Solvers
Reverse a string

205 Solvers
Perimeter of a semicircle

1515 Solvers

More from this Author52

Create a vector with n repeated values of a number x (★★)

110 Solvers
Create times-tables (★★★)

82 Solvers
Vector raised to a power, element-wise (★)

127 Solvers
Select every other element of a vector (★★)

108 Solvers
Sum of terms in a series 1 (★★★)

51 Solvers

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!