{"id":3906,"date":"2016-04-04T17:18:43","date_gmt":"2016-04-04T22:18:43","guid":{"rendered":"http:\/\/blog.lib.uiowa.edu\/eng\/?p=3906"},"modified":"2016-12-02T14:01:23","modified_gmt":"2016-12-02T20:01:23","slug":"4416-square-root-day","status":"publish","type":"post","link":"http:\/\/blog.lib.uiowa.edu\/eng\/4416-square-root-day\/","title":{"rendered":"4\/4\/16 = Square Root Day!!"},"content":{"rendered":"

\"square_root_square\"<\/a><\/p>\n

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April 4, 2016 is Square Root Day – so let’s get to the root of it!!<\/p>\n

The next square root day won’t be until May 5, 2025, so let’s celebrate! There are only nine square root days in a century – so don’t miss this one!<\/p>\n

The square root\u00a0is an important mathematical concept used in many different occupations – including carpentry, engineering, architects, landscapers, and artists and designers. So, what is a square root? The square root of any number (x) is equal to the number (y) that when multiplied by itself or squared returns the first number (x). In other words, the square root of x is y, because x X x or x\u00b22 is y.<\/p>\n

Did you know that\u00a0the symbol for square root (\u221a) is called the radix or the radical sign? And Christoff Rudolff\u00a0first used it in 1525?<\/p>\n

Maurice Machover wrote a proof poem of the irrationality of\u00a0\u221a2:<\/p>\n

Double a square is never a square, and here is the reason why:<\/em><\/div>\n
If m-squared were equal to two n-squared, then to their prime factors we’d fly.<\/em><\/div>\n
But the decomposition that lies on the left has all its exponents even.<\/em><\/div>\n
But the power of two on the right must be odd: so one of the twos is bereaven.*<\/em><\/div>\n

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What fun ways can you find to celebrate this auspicious day?\u00a0<\/strong><\/p>\n

How about:<\/div>\n