interfacing a MCP9701

Hi Gordon. Setting both the variables to 0 worked. I am now receiving a negative temp reading. It has to be my math that is the issue.

Code:

function getResTempValue(x) {
    var temp=0;
    var avgTemp=0;

    for (var i=0;i<x;i++)
    {
      var vOut = E.getAnalogVRef() * analogRead(A0); // if you attached VOUT to Ao
      var vZero = 0.4;
      var tCoeff =  19.5 / 1000;
      var tempinc = (vOut - vZero) / tCoeff;
      var tempinf = tempinc * (9 / 5) + 32;

      temp = temp + tempinc;
      console.log(temp);
      if (i==x) {
        //avgTemp = temp / x;
        //temp = temp / x;
      }
      console.log(i);
    }

    temp = temp / x;

    console.log("Temp: " + temp + "Avg temp: " + avgTemp);
    return temp.toFixed(2);
  }