Yes, we cannot calculate pi perfectly. That does not mean we cannot derive formulae or methods to approximate or even approach it, as can be seen here: http://en.wikipedia.org/wiki/Calculating_piI've thought about it some more - pi - and I've come to the conclusion that the problem is something of a paradox. Let me explain. When you measure the circumference, you intersect a straightline with the circumference twice. But when you divide the circumference by the diameter, the instances of the diameter around the circumference do not intersect. To me that means the problem is like saying "a circle intersected by its diameter leaves an infinite remainder when its diameter is unable to intersect as it bends around the circumference". The reason this leads me to think of the problem as a paradox is that you can't measure a circle using the diameter without destroying the relationship of the diameter to the circle that makes the circle the circle (I am not that confident in this idea but I will state it as I have).
What I am saying is that the width of the circle is relevant to the final calculation of the problem and that you must calculate the diameter in identical ways to get a meaningful solution (if the diameter intersected with itself as it moved around the circle, your answer would change by at least 2 x value of the line you are using).
Did you have a point?
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