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一般而言, 只有 起点为原点 的向量, 才能用 指向某点的向量 缺省代称 上图摘自 Page 4 | Chapter 2 向量运算
向量 a 减去向量 b,得到向量 a – b,其对应箭头 从 向量b的终点 指向 向量a的终点
The text was updated successfully, but these errors were encountered:
原本想用类似:
向量 a-b 对应箭头, 起点: 向量b的终点 终点: 向量a的终点
但感觉初见, 反而会更让人糊涂(谁的起点?谁的终点?) 就选择了 从......指向...... 的说明格式
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问题分析:
一般而言, 只有 起点为原点 的向量, 才能用 指向某点的向量 缺省代称
上图摘自 Page 4 | Chapter 2 向量运算
改进建议:
向量 a 减去向量 b,得到向量 a – b,其对应箭头 从 向量b的终点 指向 向量a的终点
The text was updated successfully, but these errors were encountered: