Talk:Linear density

The whole idea of linear density makes no sense. There's no such thing as a "one dimensional object". —Preceding unsigned comment added by 98.173.141.129 (talk) 21:31, 9 July 2009 (UTC)

comments on definition and the usage of one dimensional
The applied definition:
 * $$\mu = \frac{\partial m}{\partial x}$$

is in my opinion wrong. It should read
 * $$\mu = \frac{ m}{\delta x}$$

where m is the mass of the element with length $$\delta x $$

The idea of one dimensional must be specificed. A body can be considered as one-dimensional if
 * 1) the extend in space is in one direction much larger than in the other two directions
 * 2) changes of properties and dependant variables in the two short directions are small

The usage of one- and two-dimensional models is quite important in enineering and in former times in mathematics and physics. WE might consider to create an article for this item.

Paul.Holscher (talk) 08:40, 3 June 2011 (UTC)

Notation for Linear Mass Density
Should the first equation read $$\bar\lambda_m = \frac{M}{L}$$? And the fourth read $$\lambda_m = \frac{dm}{dl}$$? Or is $$m$$ a symbol for linear mass density? TryingMyBest (talk) 00:51, 23 February 2018 (UTC)