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This parameter specifies an expression to be executed after Dyalog has started and loaded a workspace or a text file containing APL source code. Also see Load. This expression is run only on Dyalog start-up and overrides the workspace latent expression ⎕LX.
The LX parameter applies only to the development version of Dyalog and is ignored in run-time applications.
The LX parameter is ignored when a workspace is loaded other than at start-up of the Dyalog program.