! This allows a set of partial derivatives each to be evaluated
! at the same point.
MACRO: duals>nweave ( n -- quot )
- dup dup dup
- '[
- [ [ epsilon-part>> ] _ napply ] _ nkeep
- [ ordinary-part>> ] _ napply _ nweave
+ dup dup dup
+ '[
+ [ [ epsilon-part>> ] _ napply ] _ nkeep
+ [ ordinary-part>> ] _ napply _ nweave
] ;
MACRO: chain-rule ( word -- e )