Created
July 27, 2012 22:36
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| let newtonSqrt x = | |
| let accuracy = 0.00001 // desired accuracy | |
| let rec iterate a = | |
| let diff = x - a*a | |
| if abs diff <= accuracy | |
| then a | |
| else iterate ((a + x/a) / 2.0) | |
| iterate (x/2.0) |
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