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Solving => Today's Puzzles => Topic started by: magus on February 06, 2012, 09:13:16 AM
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Times Table
Theme: The numbers one, four, nine & sixteen in phrases
What the starred answers start with PERFECTSQUARES [are there imperfect ones? :D]
:o Odd that both 11- and 12-Down are “layered,” both natural and both hard.
;) Two of the four theme entries are from pop culture of the 1950’s --- my favorite time of Americana. (Vivaldi was 200 years or so before that.)
RATING: ;D Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun
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Are there imperfect squares?
I think the term is used to distinguish a number that is a square of a whole number (perfect) vs. a square of some other number (I don't know if they are called imperfect though). Most whole numbers appear to be squares of irrational numbers, like 2 is a square of the square root of two. (Here irrational means "unable to be expressed as a ratio".)