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01-20-2013
02:34 PM

01-20-2013
02:34 PM

hey folks i am trying to get prime. to give me the lenght of a vector but i cant get it to work

any one who has any idea why i cant get this equation to to work in prime 2,0

in the third line i wrote how it should end up

in mathcad 15 i wrote

but this dosent work in prime

any ideas ???

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01-20-2013
03:02 PM

01-20-2013
03:02 PM

Seems you forgot the indices in the prime version of your attempt.

Why don't you just use the absolute value

vcrossa_length:=|vcrossa|

What you did in Prime was to take the square root of (three times the square of the length of your vector).

In other words you calculated the length of the vector times the square root of 3.

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01-20-2013
03:02 PM

01-20-2013
03:02 PM

Seems you forgot the indices in the prime version of your attempt.

Why don't you just use the absolute value

vcrossa_length:=|vcrossa|

What you did in Prime was to take the square root of (three times the square of the length of your vector).

In other words you calculated the length of the vector times the square root of 3.

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01-20-2013
03:13 PM

01-20-2013
03:13 PM

Re: Lenght of a vector prime 2,0

thank you. most helpful....

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01-20-2013
08:47 PM

01-20-2013
08:47 PM

Re: Lenght of a vector prime 2,0

You're welcome!