在二进制浮点数中,一种带有符号的特定值,其量值大于一台计算机所能表达的任何二进制浮点数。 In binary floating-point concepts, a value with an associated sign which is mathematically greater in magnitude than any binary floating-point number.
在编目或流内过程中使用的一种作业控制语句,可用来对包含在过程中的符号参数赋予系统设定值。对流内过程,用来标志过程的开始。 A job control statement used in cataloged or in-stream procedures. It can be used to assign default values for symbolic parameters contained in a procedure. For in-stream procedures, it is used to mark the beginning of the procedure.
恒量在一个具体数学问题里被假设具有固定值的一个量 A quantity assumed to have a fixed value in a specified mathematical context.