compute the wedge degree of a form - Maple Help

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liesymm[wdegree] - compute the wedge degree of a form

Calling Sequence

wdegree(expr)

Parameters

expr

-

differential form

Description

• 

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

• 

It returns the wedge degree of a differential form.

• 

It is defined relative to a given coordinate system, so use of setup() may change its value.

• 

As the list of coordinates fully defines the one-forms, the value of this routine is just the number of terms in the basic wedge product (that is, nopsgetformexpr).

Examples

withliesymm:

setupx,y,z

x,y,z

(1)

wdegree0

1

(2)

wdegreex

0

(3)

wdegreex2dx

1

(4)

a:=x2dx &^ dy &^ dz

a:=x2&^dy,dz,dx

(5)

wdegreea

3

(6)

See Also

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


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