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Christoph Rudolff

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by

Mikaela Riley

on 23 May 2011

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Transcript of Christoph Rudolff

Christoph Rudolff Born: 1499
Died: 1545 He was the author of
the first German
textbook on algebra. He introduced the
radicalsymbol for
the square root. Demonstration Examples: 4 is a square root of 16
because 4^2 = 16 Square Root of 144 is 12 Square Root of 2,500 is 50 Video To find square root in a calculator,
press the square root key which looks
like this: Choose the number you would like to
find the square root of.
For example: Lastly, end it with closing the number
with parenthesis. Click 'equals' & your answer should
be: Interesting Fact: Square Root has its own day,
although it is not official. It is celebrated on days
when both the day of the month and the month
are the square root of the last two digits of the year. ~The last Square Root Day was March 3, 2009 (3/3/09)

~The next Square Root Day will be April 4, 2016 (4/4/16) The symbol for the square root was first used in print in 1525 in Christoph Rudolff's Coss, which was also the first to use the signs '+' and '-' THANK YOU FOR
WATCHING! :)
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