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  • VectorSubtraction 日期:2011-09-20 09:14:00 来源:作文地带 好评:优秀英语作文

    作文地带导读:It’s the same vector as its positive counterpart, only pointing in the opposite direction.  A – B, then, is the same thing as A + (–B). For instance, let’s take the two vectors A and B:  To subtract B from A, take a ve...

    is Negative same Vector Subtraction

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