# data[].attributes.body
M(X1,Y1)(X2,Y2)

# data[].attributes.body
(x1+x2/2,y1+y2/2)
(x2-x1)2+(y2-y1)2

# data[].attributes.body
[x1, y1 ] [ x2, y2]

# data[].attributes.body
Distance:

Midpoint:

# data[].attributes.headline
What are the formulas for the following:

# data[].attributes.subject
What are the formulas for the following:

# data[].attributes.body
Distance
Midpoint

# data[].attributes.body
(xm, ym) = (x1 + x2, y1 + y2)

# data[].attributes.body
x1, x2 /2 - y1, y2 / 2