WDTM

The WDTM function computes the magnitude of the total relative rotational acceleration between markers I and J. Time derivatives are calculated in the reference frame of marker L. The first argument, marker I, must be specified.

Format

WDTM(I, J, L)

Arguments

I
The marker whose acceleration is to be computed.
J
The marker with respect to which the acceleration is to be computed. If omitted, it defaults to the ground coordinate system.
L
Time derivatives are taken in the coordinate system of this marker. If omitted, it defaults to the ground coordinate system.

Example

<Post_Request
     comment          = "WM-WDTM-HAVSIN-FORSIN-DIM-ACOS"
     id               = "3"
     type             = "EXPRESSION"
     expr1            = "NULL"
     expr2            = "WM(30102010)"
     expr3            = "WDTM(30102010)"
     expr4            = "HAVSIN(TIME,1.,0.,4.,1.)"
     expr5            = "NULL"
     expr6            = "FORSIN(TIME,0.1,6.28,0.1,0.2)"
     expr7            = "DIM(TIME,1.0)"
     expr8            = "ACOS(COS(TIME))"
/>