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我叫零向量,记我为“O”.我不同于数“0”,我是向量家族中的一员,我有长度为“O”,我还有方向,不过是任意的.我的性格有时很温顺,有时也很怪癖.我很自由,可与任何向量平行,也可与任何向量垂直.谁和我交了朋友,只有好处,没有坏处. 你想见我,在平面内只要随意点上一个点,那就是我“O”;在直角坐标系中,我在原点“O=(0,0)”. 在运算中,有时我最够朋友,有时我也翻脸不认人.
I call the zero vector, remember me as “O”. I am different from the number “0”, I am a member of the vector family, I have a length of “O”, I still have directions, but it is arbitrary. My character Sometimes it’s docile and sometimes bizarre. I’m free, I can be parallel to any vector, or perpendicular to any vector. Whoever makes friends with me is good, it doesn’t hurt. You want to see me, just click anywhere in the plane. One point, that is, I “O”; In the Cartesian coordinate system, I was at the origin “O=(0,0)”. In the operation, sometimes I’m the friend most, and sometimes I also don’t recognize people.