node package manager

euler-characteristic

euler-characteristic

Computes the Euler characteristic of a simplicial complex, ignoring duplicate cells.

Install

npm install euler-characteristic

Example

var euler = require("euler-characteristic")
 
//Compute Euler characteristic of circle 
console.log(euler([[0,1], [1,2], [2,0]])) //Prints: 0 
 
//Compute Euler characteristic of Stanford bunny 
console.log(euler(require("bunny")))      //Prints: 2 
                                          //(the bunny is homotopic to a sphere after all) 

require("euler-characteristic")(cells)

Computes the Euler characteristic of a simplicial complex, ignoring any duplicate cells.

  • cells is a simplicial complex

Returns An integer representing the Euler characteristic of the cell complex

Credits

(c) 2013 Mikola Lysenko. MIT License