The approaches that occur to me immediately are that you can either explicitly pass state or use a closure that closes over the state you need to update. Another option would be to represent your function as an object and use a generic function to apply that object to its argument.
On Fri, Aug 15, 2014 at 2:20 PM, Neal Becker <[email protected]> wrote: > I'm trying to do numerical integration. I want a function that has state > information. > > Let's say I'm trying to integrate some function F over x. In addition, F > has > some state > > function F (x, state) = <do something with x and state> > > In python (and in c++), one way is to make F a class (which can have > state), and > overload the function call operator. Then this can be passed to the > numerical > integrator. > > But in julia, we can't overload the function call operator, so I don't > know how > to proceed. Essentially, what we need is to transform the function F by > binding > one of it's arguments. > > What would you suggest here? > >
