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Page 16 | Chapter 2 向量运算 >向量减法-优化 #23

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lgr1230 opened this issue May 15, 2023 · 2 comments
Closed

Page 16 | Chapter 2 向量运算 >向量减法-优化 #23

lgr1230 opened this issue May 15, 2023 · 2 comments

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@lgr1230
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lgr1230 commented May 15, 2023

image

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
image
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 ab,其对应箭头 从 向量b的终点 指向 向量a的终点

@lgr1230
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lgr1230 commented May 15, 2023

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

@Visualize-ML
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Visualize-ML commented May 15, 2023 via email

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