Formula with geometric parameters
Definition
A formula with geometric parameters is an expression that allows handling geometric parameters in different contextsgeometry, mesh, physics.
Use
A formula with geometric parameters is used to define:
 a geometric parameter
 a parameterized quantity: the coordinate of a point, the position of a coordinate system, …
Evaluation
The parameterized expression is “directly” evaluated during the creation of concerned entities.
Example
The example below shows the use of a formula in the geometry context
The circumference of a circle is equal with 2* π *R, where R is the radius of the circle.
The geometric parameter CIRC can be written as function of another geometric parameter (RADIUS) by using the following formula (or expression):
CIRC = 2*PI*RADIUS
Formula and context
The use of these formulas in different working contexts is explained in the table below.
In the context of …  the formulas are used to define … 

Geometry 

Mesh 

Physics 
