Solution Command

solution - get and set solution parameters for generic solutions using [language.htm alagator]

Synopsis

solution

[add] [list] [present]

[nosolve] [ifpresent=<c>] [solve]

[damp] [negative]

[name = <c>]

Description

This command allows the user to create and modify solution names and set conditions for their inclusion in the assembly. Solutions can also be listed and checked.

add: Create a new solution.
list: List all of the currently defined solutions.
present: Return a true if the solution is defined and a data field matches the name.
nosolve, solve, ifpresent: Only one of these options can be used at a time. They control the solution status for the next command. Nosolve indicates do not solve and solve turns solution status for the next command. Ifpresent sets up a conditional solve. If the all the solutions in the specified list are also being solved, then this solution is solved for.
damp: Damp the Newton iteration updates for this solution.
negative: Allow the solution specified to have negative values.
name: The character string used for the solution. Capitalization is not ignored. "Boron" and "boron" are different. Abbreviations of the name are also not accepted.

Examples

solution name=Potential damp negative solve add

Create a solution named potential and always solve for it. Allow the solution to have negative values, and use damping on the Newton iteration updates.

solution name = Int !damp !negative solve add

Create a solution name Int and always solve for it. Do not use damping and do not allow values to become negative.

solution name = I2 !damp !negative ifpresent = {Int Vac} add

Create a solution named I2 and solve for it if Int and Vac are also present and being solved for.

solution list

Return a list of all solutions.

solution name = Int present

Return a boolean true if Int has been defined and there is a data field with the name Int.

Bugs and Missing Features

None.

SolutionCommand

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