Mambo Toolbox Functions - &--


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&-- — Subtracting two MAMBO vectors or descriptions [maple]

Reference: Appendix B in Multibody Mechanics and Visualization by Harry Dankowicz, published by Springer Verlag UK, 2004.

Calling Sequence

v &-- w

&--(v,w)

Parameters

v,w: MAMBO vectors or compatible MAMBO descriptions

Description

The function &-- returns the difference between the two MAMBO vectors/descriptions v and w. It is computed using the formula

v &-- w = v &++ ((-1) &** w)

Examples

>Restart():
>DeclareTriads(a,b):
>v:=MakeTranslations(a,1):
>w:=MakeTranslations([a,1],[b,2]):
>v &-- w;

$table ([1 = table ([Coordinates = [\begin{array}{r} 0 \\ - 1 \\ 0 \end{array}], Triad = b]), Size = 1, Type = Vector])$

>v &-- v;

$table ([Size = 0, Type = Vector])$

See Also

MakeTranslations, &++, &**, &oo, &xx, VectorLength

Toolbox functions

&**, &++, &--, &xx, &oo &>, &>=, &<, &<=, &==, &!= AngularMomentum AngularVelocity CoeffExtract DeclareObservers DeclarePoints DeclareStates DeclareTriads DefineNeighbors DefineObjects DefineObservers DefinePoints DefineTriads DiffTime Express FindCoordinates FindOrientation FindPosition FindRotation FindTranslation ForceDescription GeometryOutput LinearMomentum LinearVelocity MakeDescription MakeRotations MakeTranslations MomentumDescription MotionOutput NullVector Restart Simplify Undo VectorLength VelocityDescription

©2004-2017 Harry Dankowicz • Mechanical Science and Engineering • University of Illinois at Urbana-Champaign