# Cylindrical Coordinates

Discussion in 'Math' started by emt, Oct 31, 2015.

1. ### emt Thread Starter New Member

Oct 27, 2015
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0
Cylindrical Coordinates

* why is there ρ in graph (from where came)?

*what is difference between "ρ0" and "ρ" ?

2. ### Papabravo Expert

Feb 24, 2006
11,678
2,454
ρ is the radial coordinate. ρ0 is a particular constant value of the radial coordinate at which a differential length or differential area is computed.

$\rho=\sqrt{x^2 + y^2}$

As shown in the diagram the cylindrical coordinates are ρ, φ, and z

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