Notation Question

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Which is "simpler"?---i.e., considered more "simplfied" ?

[tex] \left| k \right| = 5 [/tex] OR [tex] k = \pm 5 [/tex] ?
 

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  • #2
Zurtex
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It's really about relevance. For example if it is a matter of drawing a graph like [itex]f(k) = k^2 - 25[/itex] and you want to express the fact at the point f(k) = 0 there are two solutions you would probably write [itex]k = \pm 5[/itex].

However, if it is something physical like and related to magnitude you might want to express it as [itex]|k| = 5[/itex]
 

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