Insulation

Insulation - Set up as solve block? - Messaggi

#21 Pubblicato: 23/03/2018 13:08:48
Martin Kraska

Martin Kraska

1.361 apprezzamenti in 2.275 post.

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In short: Clear the unknown variable first: Clear(T.2)=

The equation you are solving for is evaluated in the current context (all known definitions are substituted). In your FindRoot-Example, the variable T.2 which you are solving for, already has a value (just type T.2 to see it). Thus, after substitution, your equation doesn't contain the variable any more.

This is a typical mistake in equation solving. Always make sure that your unknowns are indeed unknown. This is also explained in my example upstream the topic.
Technische Mechanik mit SMath Studio: https://link.springer.com/book/10.1007/978-3-658-50592-9
#22 Pubblicato: 23/03/2018 13:42:08
Jean Giraud

Jean Giraud

983 apprezzamenti in 6.866 post.

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Wrote

OK, going back to sanity check some values.



As it looks: A US standard of mild temperature.
1srt thing to: give the link to the standard.
#23 Pubblicato: 23/03/2018 14:16:01
Ruben Sidranski

Ruben Sidranski

17 apprezzamenti in 465 post.

Gruppo: User

Wrote

In short: Clear the unknown variable first: Clear(T.2)=



ClearT2.PNG
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