Using Ctrl+Space to Access Expressions
Press Ctrl+Space in text fields for expressions to get access to lists of special operators, variables, prefixes, functions, and other expressions that the Physics Builder parser supports. The following list are available:
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 Operators: Supported special mathematical operators.
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 Functions: Various mathematical and logical functions supported by the Physics Builder.
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 Special Prefixes: Special prefixes that can be used in the Physics Builder.
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 Coordinate Access: Variables that are used to access coordinates.
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 Source Destination Access: Functions and variables used in the context of a pair feature or periodic feature.
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 Entity Access: Variables that access properties of the current model entity.
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Coordinate System Access: Variables that access the selected coordinate system.
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 Custom Physics Builder Functions: Any tensor-valued functions declared under the Auxiliary Definitions branch also show up under the Custom Physics Builder Functions menu.