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View current User Guide (Version 3.3)

MSPSetDefault


set the variable var to value if it does not have a value
  • This is a utility function for setting the default values of variables.
  • The following exceptions can be thrown by MSPSetDefault.
MSPException["ParseError"]if the value cannot be interpreted by Mathematica
MSPException["SecurityError"]if the value does not pass the security test
MSPException["ValueError"]if the value is not a string, this indicates a programmatic error by the page author
MSPException["VariableError"]if the variable is not a Mathematica symbol, this indicates a programmatic error by the page author
You can simulate how the function works by loading the package.
Here $$var has a value, so its value is not modified.
If $$var has no value, MSPSetDefault will set it.
You can simulate how the function works by loading the package.
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Here $$var has a value, so its value is not modified.
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Out[2]=
If $$var has no value, MSPSetDefault will set it.
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Out[3]=