double precision floating point number 双精度浮点数 ; 双精度浮点数字
In general supported types are Integer, Boolean, ASCII string, double-precision signed floating point number, date-time, set, list, properties.
通常支持的类型有整数、Boolean、ASCII字符串、双精度带符号浮点数、日期时间、集合、列表、属性。
Regan speculated that this particular number is troublesome because it is the "largest subnormal double-precision floating-point number."
Regan 推测这个特殊数字的麻烦之处在于它是“最大的次法线双精度浮点数”。
Converts the specified string representation of a number to an equivalent double-precision floating-point number.
将指定之数字的字串表示，转换为相等的双精确度浮点数。
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