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(history of math)
7. Approximating Square Roots. Heron of Alexandria came up...
7. Approximating Square Roots. Heron of Alexandria came up with the following iterative procedure for approximating square roots. Suppose you want to find and you have that A = a + b where al is the perfect square nearest A. Then you start by averaging a and A. Call this number ay. This is your first approximation. To find the next approximation, as you average aj and A. You can repeat this indefinitely a. Using this method, find the first, second, and third approximations to 231 b. What value does the Archimedean/Egyptian/Babylonian approximation give for 231? (This is the approximation given in class.)