if t=s, the binary operation is said to be closed . 当TS时,二元运算叫做封闭的运算。
in this and next section, we shall consider some particular algebraic sets having binary operations defined on them . 在这一节及下一节中,我们将讨论一些在其定义为二元运算的特殊代数集合。
if t = s, the binary operation is said to be closed 当ts时,二元运算叫做封闭的运算。
addition, subtraction, multiplication, and division are binary operations 加、减、乘、除都是二元运算。
when performing binary operations, if one of the operands is a floating-point type, 在执行二进制运算时,如果一个操作数为浮点类型(