h.log10

来自「强大的数学工具包」· LOG10 代码 · 共 24 行

                               * * * * * * *
                               *   log10   *
                               * * * * * * *

        "logarithm, base 10"
        SYNTAX: X = log10(A)

        A is an expression whose value is an integer. 

        X is assigned 1 + the integer part of the base 10 logarithm 
        of A, i.e. the number of digits of A.


        Example 1: (correct)

                log10(71 * 2^(gcd(3, 12345)) + 4)


        Example 2: (incorrect)

                log2(120/7)
                
_ERR_NR_309