- amgm is between its arguments
- [((+)/x)%ℝ(:x)]'([x]`7 (frange 0 9 10)) equal to [((+)/x)%ℝ(:x)]` 7
- ~`{1∘[2]}⟨⟨0,1⟩,⟨1,0::int⟩,⟨2,4⟩⟩ vs ~'⟨⟨0,1⟩,⟨1,0::int⟩,⟨2,4⟩⟩
- |: ((2 ⊖)`{1} ⟨⟨1,2⟩,⟨3,4⟩,⟨5,6.0⟩⟩)
- > [(⋉)/x] ⨳ {3} ⟨_1,0,4,_2,3,3,1,1,0,_5.0⟩ Vec 8 [4.0, 4.0, 4.0, 3.0, 3.0, 3.0, 1.0, 1.0]
[(⋉)/x] `3 ⟨_1,0,4,_2,3,3,1,1,0,_5.0⟩ Vec 8 [4.0, 4.0, 4.0, 3.0, 3.0, 3.0, 1.0, 1.0]
- :qc \xs. (xs˙)'even.⩪xs = even. § xs
- \xs.\ys. (∧)/((=)`xs ys)
- Jensen-Shannon: H(p+q/2)-(H(p)+H(q))/2
- gte 0 (Hellinger as well)