OK, I thought I could use the "if" statement to say the following: (if userdimscale 15.0 (setvar dimscale 6.0)), in english, if userdimscale equals 15.0 then set dimscale to 6.0. so, what's wrong with that it doesn't work?
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I'm not seeing a comparison operation in there...
(if ...) takes one comparison expression, one "if true" expression, and one "if false" expression:
(if (= 15.0 some_number) (foo_true) (foo_false) )
OOPS, forgot the = sign
... as well as the parentheses enclosing the (=) function, and either an apostrophe ' preceding, or two double-quotes " surrounding, the System Variable name. [I assume you also got those corrected, but just for the sake of anyone else looking around....]
(if (= userdimscale 15.0) (setvar 'dimscale 6.0))
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