IUPD
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Name

IUPD — Choice of update method for the Hessian matrix.

Synopsis

 IUPD=n

Description

This keyword directs updating of the Hessian matrix during the course of optimization based on the particular value of n.

n=0 :

no update

n=1 :

Powell update (default for TS)

n=2 :

BFGS update (default for EF)

Abbreviation:

none

Requires:

EF or TS.

Default value:

1 with TS; 2 with EF

See also:

EF, TS

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