WHERE - Revision history

Jpye: /* Use in model declaration */

2010-07-31T09:29:41Z

Use in model declaration

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	) WHERE (		) WHERE (
	reference IN components == TRUE;		reference IN components == TRUE;
	n_trays ~~>~~ 5;		n_trays > 5;

	feed_location ~~>~~ 2;		feed_location > 2;
	feed_location ~~<~~ n_trays - 2;		feed_location < n_trays - 2;
	) REFINES colmodel();		) REFINES colmodel();

Jpye: /* Use in model declaration */

2010-07-31T09:28:42Z

Use in model declaration

← Older revision		Revision as of 09:28, 31 July 2010
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	See also:		See also:
	* [[Object-oriented modelling]]		* [[Object-oriented modelling]]
	* REFINES		* [[REFINES]]

	== Use in ALIASES statement ==		== Use in ALIASES statement ==

Jpye: /* Use in model declaration */

2010-07-31T09:28:22Z

Use in model declaration

← Older revision		Revision as of 09:28, 31 July 2010
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	See also:		See also:
	* [[Object-oriented modelling ~~in ASCEND~~]]		* [[Object-oriented modelling]]
	* REFINES		* REFINES

Jpye: /* Use in model declaration */

2010-07-31T09:27:53Z

Use in model declaration

← Older revision		Revision as of 09:27, 31 July 2010
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	See also:		See also:
	* [[Object-oriented modelling in ASCEND]]		* [[Object-oriented modelling in ASCEND]]
	* REFINES		* REFINES

	== Use in ALIASES statement ==		== Use in ALIASES statement ==

Jpye: /* Use in model declaration */

2010-07-31T09:27:41Z

Use in model declaration

← Older revision		Revision as of 09:27, 31 July 2010
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	<source lang="a4c">demo IS_A demo_column(['methanol','water'],'water',13,7);</source>		<source lang="a4c">demo IS_A demo_column(['methanol','water'],'water',13,7);</source>

			See also:
			* [[Object-oriented modelling in ASCEND]]
			* REFINES

	== Use in ALIASES statement ==		== Use in ALIASES statement ==

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2010-05-13T13:43:11Z

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'''WHERE''' is used in [[object-oriented modelling]] to impose constraints on the parameters of a parametric model in ASCEND.

'''WHERE''' is also used in [[ALIASES]] statements to specify the indexes to be used in an array of aliases.

See also [[ALIASES]], [[WILL_BE]] and [[WILL_BE_THE_SAME]].

== Use in model declaration ==

<source lang="a4c">MODEL demo_column(
components IS_A set OF symbol_constant;

reference IS_A symbol_constant;
n_trays IS_A integer_constant;
feed_location IS_A integer_constant;

) WHERE (
reference IN components == TRUE;
n_trays > 5;

feed_location > 2;
feed_location < n_trays - 2;
) REFINES colmodel();

(*... rest of model follows ...*)

END demo_column;</source>

The above model is instantiated using the code

<source lang="a4c">demo IS_A demo_column(['methanol','water'],'water',13,7);</source>

== Use in ALIASES statement ==

For an example, see [[ALIASES]].

[[Category:Documentation]]
[[Category:Syntax]]