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Reference for maple version: Appendix B in Multibody Mechanics and Visualization by Harry Dankowicz, published by Springer Verlag UK, 2004.
DiffTime(expr)
DiffTime(v,a)
expr: algebraic expression, equality involving algebraic expressions, or a set, list, table, or array of algebraic expressions
v: Mambo vector
a: name of defined triad
The function
DiffTime returns the derivative with respect to time of expr.
In the second form, the function DiffTime returns the derivative of the vector v relative to the triad a.
Note that a time derivative of a variable is denoted by the concatenation of the letter "t" to the variable name.
Restart():
DeclareTriads(a,b):
DefineTriads(a,b,th,3):
DeclareStates(th):
w:=MakeTranslations([a,1],[b,2]):
DiffTime(w,a);
DiffTime([th,3*th^2]);
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| ©2004-2017 Harry Dankowicz • Mechanical Science and Engineering • University of Illinois at Urbana-Champaign | Home • Toolbox functions • Sample projects • Tutorials • Downloads |
