Matpic
mathematics, in pictures
Ladder

Pick theorem — the ladder

One essay so far against this idea. A ladder is the distinct arguments that stand against one idea, and this one has room to grow.
  1. 20 inside + 7/2 on the edge − 1 = 22.5, and the shoelace formula on the corners gives 22.5the two counts are whole numbers and the area is not, which is the whole content of the half

    Area by counting dots

    Draw a polygon with every corner on a grid of dots. Count the dots strictly inside, add half the dots on the edge, subtract one — and the answer is the area, exactly, with no measuring anywhere.

    rung 1 · discrete

All ladders