单词	Hero's method
释义	Hero's method An iterative method of approximating the square root of a number. If is required, and x0 is an initial approximation, then n = 0,1,2,… will converge to the square root of k. For example, to calculate the square root of 5, using a first approximation of 2, will give , x2=2.23611111…, x3=2.236067978…, x4=2.236067978…and . So this method has found the square root to 8 dp after only three iterations.
随便看	closed disc closed-form closed interval closed set closed surface closure cluster analysis cluster point cluster sampling coaxial cobweb plot code coded data codomain coefficient coefficient of correlation coefficient of determination coefficient of friction coefficient of restitution coefficient of skewness coefficient of variation cofactor coincident Collatz conjecture collinear

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