Pythagorean Triples Code

function Point(a,b,c){
  'use strict';

  if (! (this instanceof Point)) return new Point(x,y);
  Object.defineProperties(this, {
    a : {
      value: a || 0,
      writable: true,
      configurable: false,
      enumerable: true
    },
    b : {
      value: b || 0,
      writable: true,
      configurable: false,
      enumerable: true
    },
    c : {
      value: c || 0,
      writable: true,
      configurable: false,
      enumerable: true
    }
  });
}

function findPythagoreanTriples(max) {
  'use strict';

  var results = [],
      a = 0,
      b = 0,
      c = 0,
      limit = Math.ceil(Math.sqrt(max)/2);

  for (var m = 0; m <= limit; m++) {
    for (var n = m; 2*n*(m+n) < max; n++) {
      if (m && n && m !== n) {
        a = n*n-m*m;
        b = 2*m*n;
        c = m*m+n*n;
        if (isPythagoreanTriple(a,b,c)) {
          results.push(new Point(a, b, c))
        }
      }
    }
  }

  return results;
}

function isPythagoreanTriple(a,b,c) {
  'use strict';
  return c*c === a*a + b*b;
}