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Re: [Help]How to reprensent the result in vector form?


On 10/21/04 at 10:21 PM, sweetmelon at gmail.com (melon) wrote:

>I used mathmetica5 to solve a vector equation. Mathmetica expands
>the result into sub-variable form. But I want to get the vector
>form. How to do that?

>ex: Solution: {-u3 v2 + u2 v3, u3 v1 - u1 v3, -u2 v1 + u1 v2} I
>want mathematica give me {u cross v}

Use Cross, i.e.,

a = {u1, u2, u3}; 
b = {v1, v2, v3}; 
Cross[a, b]
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