make equality constraints work, clean up code some, don't require 'Eq' instance for solve
make equality constraints work, clean up code some, don't require 'Eq' instance for solve
shinnya/jhc-mirror,shinnya/jhc-mirror,shinnya/jhc-mirror,hvr/jhc,hvr/jhc,shinnya/jhc-mirror,hvr/jhc,hvr/jhc