that's not technically a bug but rather more idiomatic code. In fact
extend-protocol expands in to a bunch of extend-type calls just like
your code... :)
Jim
On 01/10/13 13:05, Daniel Kwiecinski wrote:
All nitpickings are warmly welcome! ;)
I'll do my best to make it high quality lib.
Report all suggestions/bugs at https://github.com/lambder/Deriva/issues
Kind Regards,
Daniel Kwiecinski (lambder)
On 1 October 2013 13:00, Jim <jimpil1...@gmail.com
<mailto:jimpil1...@gmail.com>> wrote:
wow! I've not tried it yet but looks very cool...would you mind a
bit of nitpicking? In your java.clj you've got a bunch of
'extend-type' calls:
(extend-type clojure.lang.Symbol
ExpressionTree
(to-tree [this] (symbol this)))
(extend-type Character
ExpressionTree
(to-tree [this] (symbol (str this))))
(extend-type String
ExpressionTree
(to-tree [this] (symbol this)))
(extend-type Number
ExpressionTree
(to-tree [this] this))
(extend-type clojure.lang.PersistentVector
ExpressionTree
(to-tree [this] (mapv to-tree this))) Looking at this code makes
me think you were actually looking for 'extend-protocol' rather
than 'extend-type'. Something like this: (extend-protocol
ExpressionTreeclojure.lang.Symbol (to-tree [this] (symbol this))
Character (to-tree [this] (-> this str symbol))String (to-tree
[this] (symbol this))Number (to-tree [this]
this)clojure.lang.PersistentVector (to-tree [this] (mapv to-tree
this)) )
Jim
On 01/10/13 12:48, Daniel Kwiecinski wrote:
Hi All,
I have just pushed Deriva - automated algorithmic differentiation
for Clojure and Java.
The code is on https://github.com/lambder/Deriva
And I have blog post on
http://lambder.com/articles/deriva-automatic-algorythmic-differentiation-for-java-and-clojure/
It uses algebraic expression trees (and not so algebraic case
operator for non analytic functions) and performs symbolic
manipulation on it. The end result is java bytecode with zero
function calls, just primitive operations (apart from calling
java.lang.Math funs)
Kind Regards,
Daniel Kwiecinski (lambder)
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