h.sqrt

来自「强大的数学工具包」· SQRT 代码 · 共 36 行

                               * * * * * * *
                               *    sqrt   *
                               * * * * * * *

        "square root"
        SYNTAX: X = sqrt(A)

        A is an expression whose value is an element of Z, Q, R or 
        an element of C or Z/mZ. 
        If m >= 2^30, m must be a prime, but this primality is not 
        tested.

        X is assigned the square root of A.


        Example 1: (correct)

                sqrt(4/3)


        Example 2: (correct)

                sqrt(0.23423)


        Example 3: (correct)

                sqrt(12 -(4 * 4))


        Example 4: (incorrect)

                sqrt(x*y + x2)
                
_ERR_NR_025