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As we said before, there exist special variables called parameters
that exist in all scopes. To declare a parameter called
foo with the initial value 1, we write
parameter foo = 1 |
foo is a strictly global variable.
Setting foo inside any function will modify the
variable in all contexts, that is, functions do not have a private
copy of parameters.
When you undefine a parameter using the undefine function, it stops being a parameter.
Some parameters are built-in and modify the behaviour of genius.
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