regroup the terms as a sum of products - Maple Help

Online Help

All Products    Maple    MapleSim


Home : Support : Online Help : Mathematics : Differential Equations : Lie Symmetry Method : liesymm : liesymm/wcollect

liesymm[wcollect] - regroup the terms as a sum of products

Calling Sequence

wcollect(expr)

Parameters

expr

-

expression involving wedge products

Description

• 

This routine is part of the liesymm package and is loaded via with(liesymm).

• 

The expression is rewritten in a sum of products form with each distinct wedge product or 1-form occurring exactly once. As the arguments to a wedge product are sorted into ``address'' order and coefficients are automatically extracted,  dx &^ dt is recognized as being the same as dt &^ dx.

Examples

withliesymm:setupx,y,z:

wcollectadx &^ dy+bdx &^ dy

a+bdx &^ dy

(1)

wcollectadx &^ dy+bdy &^ dx

abdx &^ dy

(2)

See Also

liesymm, liesymm[&^], liesymm[d], liesymm[Lie], liesymm[setup], with


Download Help Document

Was this information helpful?



Please add your Comment (Optional)
E-mail Address (Optional)
What is ? This question helps us to combat spam