By default, the scale for a DECIMAL type is0, which means the DECIMAL data type mimics an integer type. 默认情况下,DECIMAL类型的刻度为0,这意味着DECIMAL数据类型模拟了整数类型。
To create a decimal type, you specify the precision and, optionally, the scale for the data to be stored. 要创建算术类型,应当指定保存的数据的精度,并可选地指定数据的刻度。
We need to be accurate to two decimal places ( e.g.in a simple accounting package), scale everything up by100, and convert it back to floating point as late as possible. 我们处理小数的时候要精心些,比方说我们在做一个简单的统计程序时,要限制结果不能超过100,要尽可能晚的把它转化成浮点数。
For a numeric/ decimal base type, length should be specified as "precision, scale". 对于数值型/小数型基本类型,其长度应定义为精度,进位制。
The Design and Implementation of Conversion Between Decimal Representation and N-scale Notation 十进制与任意进制转换的设计与实现
Theorem about reciprocal transformation be-tween decimal numerals and mixed scale numerals is discussed in detail and the rigorous proof about this theory is given. The aim is that simple formulas in theorem is substituted for the former complicated transformation algorithms. 因此,给出了十进制数与混合进制数之间的相互转化定理及其严密的理论证明,旨在应用定理中简单的公式来代替以往复杂的转化算法。
The writer has adopted the design idea of top graphic to design the core chip, a decimal counter and a frequency controlling signal generator. Particularly, the circuit of the digital cymometer is designed on a grand scale programmable logic device FPGA. 本文采用自顶向下的设计方法,对数字频率计的核心&十进制计数器和测频控制信号发生器进行设计,其特点是将数字频率计的电路集成在一块大规模可编程逻辑器件(FPGA)芯片上。