return the difference operator associated to the LRE - Maple Help

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LREtools[REtodelta] - return the difference operator associated to the LRE

Calling Sequence

REtodelta(problem)

Parameters

problem

-

problem

Description

• 

This routine returns the difference operator, in terms of the inert name LREtools[Delta], associated to the problem.  The operator is indexed by the name of the variable from the problem.

• 

The command with(LREtools,REtodelta) allows the use of the abbreviated form of this command.

Examples

withLREtools:

REtodeltaun+1un,un,

LREtoolsΔn

(1)

REtodeltat+1ut+2+t+2ut,ut,

t+1LREtoolsΔt2+2t+2LREtoolsΔt+2t+3

(2)

See Also

LREtools, LREtools[delta], LREtools[REcreate], LREtools[shift]


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