Hi there,
I am trying to make a sub-window of one window and make them work
together. I mean, if I zoom or transform some content in one of the window,
the other one works in the same way.
What I have done so far is just open a new window which have the same
drawing view as the original one, but w
Hi, is there anyone can tell me what does the ::= mean?And what does the
code below mean?
expr ::= expr addop term | term
Thank you in advance!
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Hi, I am trying to get the function showMinProp to return String, but I
always get an error of parse error (possibly incorrect indentation)
Who can help with this? any idea?
Thank u in advance!
data Prop
= Var String
| Negation Prop
| BinOp Op Prop Prop
data Op = And | Or | Implies | Equiv
Hi there,
If I import a module and do not explicitly point out the entities I have
imported. And I want the ghc to point out the entities automatically. Is
there any method to do this? any methods to have the ghc point out the
entities I import and export?
Because there are so many files and I don
I have trouble in returning a list of Figures. I want return a type of m
(Maybe [Figure IO]), but the type of dv_findFigure is :: a -> Point -> s
(Maybe (Figure s)). How can change the code below to get a s (Maybe [Figure
s])?
Thank you in advance!
dv_findFigure :: a -> Point -> s (Maybe (Figures