SFHub Identifiers

All SFHub variables must be identified with unique names called identifiers.

Variable's identifiers MUST start with the $ character and be can be short names (like $a and $b) or more descriptive names ($Volume, $Min, $density).

The general rules for constructing variable names (unique identifiers) are:

• Names starting with $ are Element variables
• Names starting with $$ are Analytic variables
• Names starting with _ are discard Element variables
• Names starting with __ are discard Analytic variables
• Names can contain letters, digits, underscores.
• Names must begin with $ or $$ or _
• Names are NOT case sensitive
• Keywords cannot be used as names