who invented PI

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  1. Posts : 469
    Win 7 home premium 32 bit
       #1

    who invented PI


    does anybody know the name of mathematician who invented PI (ie 22/7)
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  2. Posts : 8,476
    Windows® 8 Pro (64-bit)
       #2

    Euclid, I think.
    A quick Google search also suggests it was Euclid.
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  3. Posts : 3,724
    Windows 10x64 Build 1709
       #3

    A quibble, I know... but nobody "invented" Pi , its not something to be invented. Now , who was the first to UNDERSTAND Pi and to figure its parameters we'll probably never know but its approximate value has been know and used for a very long time : ...."The Egyptian scribe Ahmes wrote the oldest known text to give an approximate value for Pi, citing a Middle Kingdom papyrus"...... ." "By 2000 B.C., Babylonians established the constant circle ratio as 3-1/8 or 3.125. The ancient Egyptians arrived at a slightly different value of 3-1/7 or 3.143"...... not far off and considering, not too bad.
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  4. Posts : 24,479
    Windows 7 Ultimate X64 SP1
       #4

    Correct, π was a discovery that the ratio of a circle's circumference to its diameter is constant regardless of the length of the diameter. 22/7 is an approximation.
    Newton didn't invent gravity either, he discovered it, although that may be a myth.

    who invented PI-pi-unrolled-720.gif
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  5. Posts : 53,363
    Windows 10 Home x64
       #5

    who invented PI-wow_pi_wow-620x411.jpg

    A Guy
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  6. Posts : 6,330
    Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64 +Linux_VMs +Chromium_VM
       #6

    I always thought my Grandma invented it for me

    who invented PI-apple-pie-1.jpg
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  7. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #7

    Many year ago I read that PIE might of been realized when pouring sand into a pile. The little pointed cone that was created always had the same angles and measurements when done in the same fashion. They thought of that as one of the natural structures of the gods.
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  8. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #8

    Layback Bear said:
    Many year ago I read that PIE might of been realized when pouring sand into a pile. The little pointed cone that was created always had the same angles and measurements when done in the same fashion. They thought of that as one of the natural structures of the gods.
    I think you are thinking of the Angle of Repose
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  9. Posts : 14,606
    Microsoft Windows 7 Home Premium 64-bit 7600
       #9

    eee the boffins are awake. dont rattle the cage!

    pie was invented by apple

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  10. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #10

    Could be, it's been a long time. I stand corrected.
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