Impressively they even have Smith charts, for a graphical representation of RF transmission lines. For a closely related good time hit images.google.com and tr

Impressively they even have Smith charts, for a graphical representation of RF transmission lines. For a closely related good time hit images.google.com and try nomogram and nomograph for various paper and pencil based calculators. I spent many an hour wargaming on hex grids in the olden days. (edited to add: Oh my. I suppose its inevitable people would print on demand hex notebooks: http://www.lulu.com/shop/jed-mcclure/albatross-dungeon-notebook-008/paperback/product-20420848.html http://www.lulu.com/shop/jed-mcclure/albatross-dungeon-noteb... )