// Note that you'll need to switch the minus sign in that equation to a plus to account
// for the fact that the map's y-axis actually points downwards.
It is agreed that
That comment is incorrect, you shouldn’t change the sign. they still haven’t fixed it.
in the
updateWeights
function it says:It is agreed that
Discussion from: https://carnd.slack.com/archives/C4TSP7BFU/p1494255995984903