1. ## minimize the square

Why do we want to minimize the square difference from a point to the line instead of the actual difference when using the least squares method?
checkbox select:
1. It's more accurate to minimize the larger value
2. We could minimize the actual difference as well
3. We want to ensure the values is positive because it is a distance
4. We want to ensure that far away points are weighted more heavily than nearby points.

I think select 1, 2, 4 are right.
But i can not sure.
Anyone can give me some advise?

2. ## Re: minimize the square

3 is the only one that's correct.

3. ## Re: minimize the square

Thanks.
But i think it is not correct.