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.

Code: Select all

\vec{r}

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

Code: Select all

\overrightarrow{\text{AB}}

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.

Code: Select all

\newcommand{\abs}[1]{\lvert#1\rvert}
\newcommand{\norm}[1]{\lVert#1\rVert}

Test them and you will find out what is the right one for you. Examples can be

Code: Select all

\abs{\vec{r}}
\norm{\vec{r}}

Best Regards
Thorsten

[iperten]

Dear localghost,

this is exactly what I wished to hear.

Thank you.

Mattia.