Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 1 of 1

Thread: Mechanical calculator trying to divide by zero

  1. #1
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    26,444
    Thanks
    8,100
    Thanked 40,267 Times in 11,778 Posts

    Mechanical calculator trying to divide by zero

    Mechanical calculator tries to divide by zero, in GIF and short video.


    https://diqn32j8nouaz.cloudfront.net...ng_by_zero.gif

    We don't know exactly why this is happening with this specific Facit ESA-01 mechanical calculator, but it might have to do with how some mechanical calculators use subtraction to perform division. Like this:

    20 ÷ 4 = ?

    1. 20 - 4 = 16
    2. 16 - 4 = 12
    3. 12 - 4 = 8
    4. 8 - 4 = 4
    5. 4 - 4 = 0

    5 steps are used to get to zero above. Thus, 20 ÷ 4 = 5. So here's the problem when using subtraction when dividing by 0:

    20 ÷ 0 = ?

    1. 20 - 0 = 20
    2. 20 - 0 = 20
    3. 20 - 0 = 20
    4. 20 - 0 = 20
    5. 20 - 0 = 20
    6. 20 - 0 = 20
    7. 20 - 0 = 20

    etc...




    186 More Best Homemade Tools eBook

  2. The Following 2 Users Say Thank You to Jon For This Useful Post:

    PJs (Jan 12, 2017), Seedtick (Jan 15, 2017)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •