http://www.aec.gov.au/_content/what/voting/count_senate.htm I quite like the Australia voting system: electorate-wide preferential voting for the House of Representatives and state-wide proportional representation in the Senate. (Voting is also compulsory.) But the details of the Senate’s voting system are insanely complicated! Part of the procedure, for example, involves calculating a figure “to the eighth decimal point, without rounding.” 11:32