1. 加、减运算(addition and subtraction) 矩阵与数组的加减运算没有区别,运算符均为“+”、“-”,运算方 法相同,但两个运算对象必须是同阶矩阵,否则将给出错误信息。
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相减运算 additive operation ; px-py
缩减运算符 Reduction Operator
递减运算子 Decrement operator ; operator
递增/递减运算符 Increment/Decrement Operators ; Incrementing / Decrementing operators
递减运算符 decrement operator ; decrement
减法运算 Subtraction ; SUB ; t
称为前缀自减运算符 Prefix Decrement Operator
自减运算符 self-subtracted operator ; auto-decrement operator
模减运算 Modulo subtraction
本文给出了一种只用加、减运算就能求水平线与凹多边形边界交点的方法。
This paper gives an algorithm of crossings between horizontal lines and the boundaries of a concave polygon by means of mere addition and subtraction.
利用齿坯实体模型和刀具实体模型做布尔减运算,来实现模拟工件材料的去除过程;
The cutting process was performed through subtraction boolean operation of the solid model of workpiece and cutter.
自增自减运算是C语言常用的运算,它只能作用于变量,不能作用于常量或表达式。
Self-increase operation and the self-reduction operation are the operations used in C language, they can only act on the variable, not act on the constant or the expression.
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