Showing posts with label holiday. Show all posts
Showing posts with label holiday. Show all posts
Tuesday, November 6, 2012
Monday, October 8, 2012
More Hexaflexagons
http://www.youtube.com/watch?v=paQ10POrZh8&feature=em-uploademail-new
Vihart video Hexaflexagons 2
Hexaflexagon celebration Website: http://www.puzzles.com/hexaflexagon/
Previous Years: http://www.puzzles.com/hexaflexagon/aroundtheworld.html
Martin Gardner's post on Hexaflexagons 1956: http://www.puzzles.com/hexaflexagon/aroundtheworld.html
Vihart video Hexaflexagons 2
Hexaflexagon celebration Website: http://www.puzzles.com/hexaflexagon/
Previous Years: http://www.puzzles.com/hexaflexagon/aroundtheworld.html
Martin Gardner's post on Hexaflexagons 1956: http://www.puzzles.com/hexaflexagon/aroundtheworld.html
Friday, February 13, 2009
A Nerdy Valentine's Gift for Those of You with TI Graphing Calculators
In Y =
Y1 = abs(x) + √(1 - x^2)
Y2 = abs(x) - √(1 – x^2)
In WINDOW
Xmin = -1
Xmax = 1
Ymin = -1
Ymax = 1.5
In FORMAT
AxesOff
In MODE
Simul
Y1 = abs(x) + √(1 - x^2)
Y2 = abs(x) - √(1 – x^2)
In WINDOW
Xmin = -1
Xmax = 1
Ymin = -1
Ymax = 1.5
In FORMAT
AxesOff
In MODE
Simul
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