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liesymm

  

wcollect

  

regroup the terms as a sum of products

 

Calling Sequence

Parameters

Description

Examples

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

 


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