If you can tell me what these two functions are for, you win a prize

gistfile1.js

t.prototype.REDACTED = function(a, b, j, c, g) {
  for(var r = this.REDACTED2(0), t = Math.tan(r), C = g % 86400 / 86400 * Math.PI * 2, g = [], n = 0;n <= c + 1;n = n + 1) {
    g[n] = Math.atan(Math.cos(2 * Math.PI * (j + n / c) / a + C) / t) / Math.PI * c * a / 2 - (b - a / 4) * c;
  }
  b = Math.max.apply(Math, g);
  j = Math.min.apply(Math, g);
  a = "";
  if(g[0] > 0 && g[0] < c) {
    a = "M0," + g[0];
    if(b >= c) {
      for(b = 0;b < g.length - 1;b = b + 1) {
        if(g[b] > c) {
          g[b - 1] > c && g[b + 1] > c || (a = a + ("L" + b + "," + c));
        }else {
          if(g[b] < 0) {
            a = a + ("L" + b + ",0");
            break;
          }
          a = a + ("L" + b + "," + g[b].toFixed(1));
        }
      }
      if(r >= 0) {
        if(b == g.length) {
          a = a + ("L" + c + "," + g[c].toFixed(1));
          a = a + ("L" + c + "," + c);
        }
        a = a + ("L0," + c);
      }else {
        b == g.length && (a = a + ("L" + c + "," + g[c].toFixed(1)));
        a = a + ("L" + c + "," + c) + ("L" + c + ",0") + "L0,0";
      }
    }else {
      if(j <= 0) {
        for(b = 0;b < g.length - 1;b = b + 1) {
          g[b] < 0 ? g[b - 1] < 0 && g[b + 1] < 0 || (a = a + ("L" + b + ",0")) : a = a + ("L" + b + "," + g[b].toFixed(1));
        }
        if(r >= 0) {
          b == g.length && (a = a + ("L" + c + "," + g[c].toFixed(1)));
          a = a + ("L" + c + ",0") + ("L" + c + "," + c) + ("L0," + c);
        }else {
          if(b == g.length) {
            a = a + ("L" + c + "," + g[c].toFixed(1));
            a = a + ("L" + c + ",0");
          }
          a = a + "L0,0";
        }
      }else {
        for(b = 0;b < g.length - 1;b = b + 1) {
          a = a + ("L" + b + "," + g[b].toFixed(1));
        }
        a = a + ("L" + c + "," + g[c].toFixed(1));
        a = r >= 0 ? a + ("L" + c + "," + c) + ("L0," + c) : a + ("L" + c + ",0") + "L0,0";
      }
    }
  }else {
    if(g[c] > 0 && g[c] < c) {
      b = 0;
      if(g[0] <= 0) {
        for(;g[++b] <= 0;) {
        }
        for(a = "M" + b + ",0";b < g.length - 1;b = b + 1) {
          a = a + ("L" + b + "," + g[b].toFixed(1));
        }
        a = r >= 0 ? a + ("L" + c + "," + c) + ("L0," + c) + "L0,0" : a + ("L" + c + ",0");
      }else {
        if(g[0] >= c) {
          for(;g[++b] >= c;) {
          }
          for(a = "M" + b + "," + c;b < g.length - 1;b = b + 1) {
            a = a + ("L" + b + "," + g[b].toFixed(1));
          }
          a = r >= 0 ? a + ("L" + c + "," + c) : a + ("L" + c + ",0") + "L0,0" + ("L0," + c);
        }
      }
    }else {
      if(g[0] <= 0 && g[c] <= 0) {
        if(b < 0) {
          a = r >= 0 ? "M0,0" + ("L" + c + ",0") + ("L" + c + "," + c) + ("L0," + c) : "M0,0";
        }else {
          for(b = 0;g[++b] <= 0;) {
          }
          for(a = "M" + b + ",0";b < g.length;b = b + 1) {
            if(g[b] <= 0) {
              break;
            }
            a = a + ("L" + b + "," + g[b].toFixed(1));
          }
          r >= 0 && (a = a + ("L" + c + ",0") + ("L" + c + "," + c) + ("L0," + c) + "L0,0");
        }
      }else {
        if(g[0] >= c && g[c] >= c) {
          if(j > c) {
            a = r < 0 ? "M0,0" + ("L" + c + ",0") + ("L" + c + "," + c) + ("L0," + c) : "M0,0";
          }else {
            for(b = 0;g[++b] >= c;) {
            }
            for(a = "M" + b + "," + c;b < g.length;b = b + 1) {
              if(g[b] >= c) {
                break;
              }
              a = a + ("L" + b + "," + g[b].toFixed(1));
            }
            r < 0 && (a = a + ("L" + c + ",0") + ("L" + c + "," + c) + ("L0," + c) + "L0,0");
          }
        }else {
          if(g[0] <= 0) {
            for(b = 0;g[++b] <= 0;) {
            }
            for(a = "M" + b + ",0";b < g.length;b = b + 1) {
              if(g[b] >= c) {
                break;
              }
              a = a + ("L" + b + "," + g[b].toFixed(1));
            }
            a = a + ("L" + b + "," + c);
            a = r >= 0 ? a + ("L0," + c) + "L0,0" : a + ("L" + c + "," + c) + ("L" + c + ",0");
          }else {
            for(b = 0;g[++b] >= c;) {
            }
            for(a = "M" + b + "," + c;b < g.length;b = b + 1) {
              if(g[b] <= 0) {
                break;
              }
              a = a + ("L" + b + "," + g[b].toFixed(1));
            }
            a = a + ("L" + b + ",0");
            a = r < 0 ? a + "L0,0" + ("L0," + c) : a + ("L" + c + ",0") + ("L" + c + "," + c);
          }
        }
      }
    }
  }
  return a;
};

t.prototype.REDACTED2 = function(a) {
  a || (a = 0);
  var b = new Date, j = b.getUTCFullYear(), c = b.getUTCMonth() + 1, g = b.getUTCDate();
  if(c <= 2) {
    j = j - 1;
    c = c + 12;
  }
  var r = Math.PI / 180, a = (Math.floor(365.25 * (j + 4716)) + Math.floor(30.6001 * (c + 1)) + g - Math.floor(j / 100) + Math.floor(Math.floor(j / 100) / 4) + b.getTime() % 864E5 / 864E5 + a * 1E3 - 2453068) / 36525, b = (357.52911 + a * (35999.05029 - 1.537E-4 * a)) / r;
  return Math.asin(Math.sin((23 + 13 / 30 + (21.448 - a * 46.815 + a * a * 5.9E-4 - a * a * a * 0.001813) / 3600 + 0.00256 * Math.cos(r * (125.04 - 1934.136 * a))) * r) * Math.sin(((280.46646 + a * 36000.76983 + a * a * 3.032E-4) % 360 + Math.sin(b) * (1.914602 - a * 0.004817 + a * a * 1.4E-5) + Math.sin(b + b) * (0.019993 - a * 1.01E-4) + Math.sin(b + b + b) * 2.89E-4 - 0.00569 - 0.00478 * Math.sin((125.04 - 1934.136 * a) * r)) * r));
};

Completely unhelpful hint: (8, 3, 4, 256, new Date / 1000) is an example of a set of arguments that does some interesting stuff ;)

The two functions in conjunction are probably used to project an overlay of the day / night over a map
REDACTED2: Deals with sun angle calculation
REDACTED: Creates the PATH data (SVG)

Source: http://www.edesign.nl/2009/05/14/math-behind-a-world-sunlight-map/ and here: http://en.wikipedia.org/wiki/Position_of_the_Sun

Honestly I count not really trim the values to make it work 100%, but sure enough I could make it draw something: http://jsbin.com/hinor/1/edit