set the variable var to value if it does not have a value
| 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 installing and loading the package.
| In[1]:= |
Here $$var has a value, so its value is not modified.
| In[2]:= |
| Out[2]= |  |
If $$var has no value, MSPSetDefault will set it.
| In[3]:= |
| Out[3]= |  |
