Problem 55980. Generate Pascal's Triangle Matrix

• Created by Ben Placek
• Appears in MATLAB Fundamentals - Programming Constructs

×

Like (4)

Difficulty:

(1271)

Rate

• Solve Later   
• Add To GroupÂ

Pascal's triangle is an arrangement of numbers where each value is the sum of the values adjacent to it in the previous row:

The values can also be calculated directly. The value of the row is . For example, the fifth row is 1, 4, 6, 4, 1:

nchoosek(4,0)

ans =

1

nchoosek(4,1)

ans =

4

nchoosek(4,2)

ans =

6

nchoosek(4,3)

ans =

4

nchoosek(4,4)

ans =

1

Given a positive integer n, return an n-by-n matrix that represents the values of the first n rows of Pascal's triangle. The first k values of the kth row of the matrix will be the values from Pascal's triangle; the remaining n-k values should be 0.

For example, for n = 6, the output should be

1 0 0 0 0 0

1 1 0 0 0 0

1 2 1 0 0 0

1 3 3 1 0 0

1 4 6 4 1 0

1 5 10 10 5 1

Solve

Solution Stats

66.34% Correct | 33.66% Incorrect

• 202 Solutions
• 125 Solvers

Last Solution submitted on Apr 05, 2025

Last 200 Solutions

Solution Comments

ANNOUNCEMENT ×

Registration Now Open for MathWorks AUTOMOTIVE CONFERENCE 2025

Hello Community, We're excited to announce that registration is now open for the...

Problem Recent Solvers125

Suggested Problems

• Find the two most distant points

  2885 Solvers

• Generate a vector like 1,2,2,3,3,3,4,4,4,4

  12207 Solvers

• Write a function man that takes a row vector v and returns a matrix H as follows..

  621 Solvers

• MATLAB Basic: rounding III

  5332 Solvers

• Air Mass to Star for an Observer at Mean Sea Level

  340 Solvers

More from this Author12

• Where the Four Corners Am I? (Vectorized)

  121 Solvers

• Next Tribonacci Number

  129 Solvers

• Split Even Number Into Two Primes

  195 Solvers

• Generate Tribonacci Sequence

  143 Solvers

• Create an arrow matrix

  445 Solvers