Skip to content

Conversation

@MeKaustubh07
Copy link
Contributor

🟨 Pascal’s Triangle Generator (R)

This script implements Pascal’s Triangle — a fundamental structure in combinatorics and number theory — using R.
Each entry in the triangle represents a binomial coefficient C(n, k) and satisfies the recursive property:

[
C(n, k) = C(n-1, k-1) + C(n-1, k)
]


📘 Features

  • Generate Pascal’s Triangle up to n rows
  • Get a specific row or element (C(n, k))
  • Print the triangle neatly (centered or left-aligned)
  • Compute row sums (powers of 2) and diagonal sums (Fibonacci sequence)
  • Visualize the Sierpiński Triangle pattern of odd numbers
  • Return the triangle as a matrix representation
  • Demonstrate properties and applications with examples

⚙️ Functions Overview

Function Description
pascal_triangle(n) Generate full triangle up to n rows
pascal_row(n) Get the nth row (0-indexed)
pascal_element(n, k) Get a specific element C(n, k)
print_pascal_triangle(n, centered = TRUE) Print formatted triangle
pascal_row_sum(n) Get sum of row n = 2^n
pascal_all_row_sums(n) Vector of row sums up to n
pascal_diagonal_sums(n) Compute diagonal sums (Fibonacci pattern)
pascal_triangle_matrix(n) Return matrix form of triangle
pascal_odd_pattern(n) Return odd/even pattern (Sierpiński triangle)

🧩 Example Usage

source("pascal_triangle.r")

# Generate Pascal's Triangle (10 rows)
print_pascal_triangle(10)

# Get row 7
pascal_row(7)

# Compute C(10, 3)
pascal_element(10, 3)

# Show Fibonacci diagonal sums
pascal_diagonal_sums(10)

# Display odd-number pattern (Sierpiński triangle)
odd_pattern <- pascal_odd_pattern(8)
print(odd_pattern)

Copilot AI review requested due to automatic review settings October 18, 2025 20:27
Copy link

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull Request Overview

Adds a new mathematics algorithm implementation for Pascal’s Triangle in R, including generation, element access, printing, derived properties, and visualizations.

  • Introduces core functions: pascal_triangle, pascal_row, pascal_element, and helpers for sums, matrix, and odd-number pattern.
  • Adds a formatted printer and a comprehensive (disabled) examples block demonstrating properties and usage.

Copilot AI review requested due to automatic review settings October 20, 2025 06:14
Copy link

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 6 comments.

Comments suppressed due to low confidence (1)

mathematics/pascal_triangle.r:1

  • These are central binomial coefficients, not Catalan numbers. Either relabel the example as 'Central binomial coefficients' or compute Catalan numbers using choose(2n, n)/(n + 1).
# pascal_triangle.r

@MeKaustubh07 MeKaustubh07 requested a review from Copilot October 20, 2025 06:23
Copy link

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 8 comments.

Copilot AI review requested due to automatic review settings October 20, 2025 09:43
Copy link

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 3 comments.

@siriak siriak merged commit 05f442d into TheAlgorithms:master Oct 25, 2025
2 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants