Findings:

• the average number of fixed points of a permutation is 1
• Old chestnut: Connect 3x3 points with 4 lines
• answer: connect 3x3 points with 4 lines
• Origin line
• Equation of a Line Normal to a Second Line, and Containing a Point on the Second Line
• Line with two origins
• 555 line numbers
• number line
• Red Line
• Orange Line
• Green Line
• Blue Line
• Front Line Assembly
• Battle of the Line
• A Line
• Command Line Interface
• line
• straight line
• A fine line between stupid and clever
• Whose Line is it Anyway?
• command line options
• T1 Line
• assembly line
• line marriage
• line noise
• line dance
• International Date Line
• Mason-Dixon Line
• Line in the sand
• line drive
• vertical line
• line segment
• command line
• poverty line
• dotted line
• Maginot line
• tan lines
• Geek pick-up lines
• Circle Line
• Bee line
• Fraunhofer lines
• Gunter's line
• Water line
• Yamanote Line
• A double-edged sword has no point
• thin blue line
• What's My Line?
• pickup line
• County Lines
• bass line
• trinitron lines
• Line of Dance
• Line of scrimmage
• kludge line mode
• flight line
• Bikini Line
• position line
• Why the streets of Paris are lined with trees
• The end of the line
• Hit the main line
• drum line
• NSA line eater
• In line
• The Thin Blue Line
• Where do you draw the line?
• hat lines
• eye line
• Reading between the lines of an Annual Report
• She approached me with some vague line
• How to tell if your phone line supports DP dialing
• Great first lines
• line 666
• RSA in 3 lines of perl
• First Line, Last Line
• line eater, the
• csh history expansion refers to the line before most csh expansions occurred
• beam line
• Victoria Line
• Central Line
• finding rx on a 20mA loop line
• sight lines
• pick up line
• Doom Command Line Parameters
• life line
• plot line
• Northern Line
• agate line
• Lines Composed a Few Miles above Tintern Abbey
• agonic line
• Air line
• Island Line
• Midland Main Line
• toll-free consumer help lines
• drop me a line (user)
• Equation of a line
• I stand in line for that kinda pain
• The Main Line
• isoseismal line
• Ley line
• goal line
• Center line
• lines of code
• Lines on War
• Timeline of important events in the Star Wars galaxy
• Line!
• Midnight on the Firing Line
• Lines of Communication
• A Chorus Line
• the possible benefits of waiting in line
• in line to buy a ticket, high
• Good Beat, Easy to Dance To (or The Bottom Line)
• Why can't you walk in a straight line?
• Do's Intro: Our Purpose - The Simple Bottom Line
• The Thin Red Line
• In The Line Of Fire
• If you'll form a line here, the tour starts in ten minutes
• Rimrod's Fencing Autobiography : Fifteen
• I'm Gonna Ride That Southern Railway Line
• panty lines
• The thin line between art and child pornography
• The best line I ever used
• motion lines
• Short Line Railroad
• Korean pickup lines
• Japanese pickup lines
• running that fine line
• Nazca Lines
• Winning Lines
• Mendoza Line
• In the Beginning was the Command Line
• Power lines and cancer
• The Women's Magazine Checkout Line Game(tm)
• transversal line
• long line
• The line from Hell
• How to be the first one off the line at a 4-way stop sign
• Lazy Line Painter Jane
• fall line
• Line Noise (user)
• Command Line Porn
• Tapestry: a weave of false truths and tangled lines
• status line
• equilibrium line
• firn line
• snow line
• The Thin H Line
• The fine line between love and hate
• The New York City Subway Lines Project
• line spectra
• tree line
• I once dreamt that I was a line
• Tying fishing line to a hook
• Big Iron and Lightning Lines - Babbage, Morse & Co. (1797- 1847)
• Logical Pickup Lines
• Balanced line
• how to short out a phone line
• Riding the lines
• Sylvie and Bruno: Crossing the Line
• Lines on Ale
• The Longest Line
• line democracy

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