Symbol for the area of a shape
There are mathematical symbols to represent angles ($\angle AB$) and magnitudes ($|AB|$) and what not (ie: not variables, but rather symbol operator thingies).
Is there a symbol to represent the area of a given shape?
(so for a shape defined by points $A,B,C,D$; I could represent the area as *symbol* $ABCD$ or something to that effect)
I'm not looking for a variable to contain the area, like $A$, but a representation for a given shape.
Thanks!
(Sorry if this question is out of place; new here)
(was also uncertain about tag)
2 Answers
$\begingroup$Whatever notation you use, define it, and everything should be fine. To get you some ideas, you could use, for example:
- $[\triangle ABC]$, $[\hspace{-1pt}[\triangle ABC ]\hspace{-1pt}]$,
- $\langle \triangle ABC \rangle$, $\langle\!\langle \triangle ABC \rangle\!\rangle$,
- $|\triangle ABC|$, $\|\triangle ABC\|$,
- $\mu_2(\triangle ABC)$.
If you won't use other measures like lenght or volume, you can skip the "2" symbol or the double brackets.
I hope this helps ;-)
$\endgroup$ $\begingroup$The Lebesgue measure seems like what your'e looking for. It is a generalization of the well-known length, area and volume.
For the area of the shape ABCD, you could write $m(ABCD)$
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