General ⇒ Latex symbol for vector magnitude

[iperten]

Dear all,

is there anyone who knows the Latex symbol for a vector magnitude/length?

Thank you.

[localghost]

I'm not sure whether I understand you right. A vector is normally specified by a simple command from standard LaTeX.

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\vec{r}
 
 
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This puts an arrow atop r which now symbolizes a vector. Another way would be the representation of a vector drawn from an initial point A to a terminal point B. This can be done by typing

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\overrightarrow{\text{AB}}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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with the help of amsmath. The last point is the norm of a vector, the square root from the sum of its components. I suggest to define new commands (again with amsmath) in the preamble for an easier workflow.

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\newcommand{\abs}[1]{\lvert#1\rvert}
\newcommand{\norm}[1]{\lVert#1\rVert}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Test them and you will find out what is the right one for you. Examples can be

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\abs{\vec{r}}
\norm{\vec{r}}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Best Regards
Thorsten

[iperten]

Dear localghost,

this is exactly what I wished to hear.

Thank you.

Mattia.