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| PRDPK1 |
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MEANING: PREDPP-PK common
CONTEXT: PK routine
USAGE:
COMMON /PRDPK1/ MTIME(0:PCT)
(If double precision is to be used):
DOUBLE PRECISION MTIME
(If single precision is to be used):
REAL MTIME
The value of PCT must be the same as that found in file SIZES
(See sizes).
DISCUSSION:
Model time parameters MTIME are stored in common PRDPK1 if they are
defined in $PK abbreviated code or if verbatim code is present in $PK.
This makes them also available to the ERROR routine. However, their
eta derivatives (if any) are not included in common PRDPK1. Hence the
ERROR routine should not use model time parameters in such a way as to
influence the value of Y if those parameters have eta derivatives.
A user-written PK routine need not define this common unless perhaps
the model time parameter values are used in the ERROR routine.
(See mtime, model time examples).
REFERENCES: None.
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