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Archive for March 6th, 2015

Perfect π

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Pi Scientific CalcGot an iPhone? Bring up the Control Center by swiping up from the bottom of the screen. At the bottom center right of the Control Center, click the icon for the Calculator. Pi 240Or shortcut these first two steps by simply telling Siri, “Run Calculator.” With the Calculator onscreen, turn the device to landscape view to access the scientific calculator. Near the center of the bottom of the scientific calculator display, click the π button. The scientific calculator displays the value of pi rounded to 16 significant digits: 3.141592653589793. Without clearing the calculator, turn the device to portrait view; the simple calculator now displays the value of pi rounded to 9 significant digits: 3.14159265. Or shortcut all of these steps by asking Siri, “What is the value of pi?” — via Wolfram Alpha, to 29 significant digits: 3.1415926535897932384626433832. Or let Siri take it out farther by asking something like, “What are the first 240 digits of pi?”

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Written by macheide

6 March 2015 at 7:52 am

Posted in mathematic

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