BendMlTensorArray.Bands.zeros: def of bend-ml-tensor-array@0.1.19.0
Import: import bend-ml-tensor-array@0.1.19.0/main.bend as BendMlTensorArray
Lines 1578-1585 of bend-ml-tensor-array@0.1.19.0/main.bend: https://jend.leeeet.dev/read.txt?path=bend-ml-tensor-array@0.1.19.0/main.bend&start_line=1578&end_line=1585

import Base

# r x c of zeros in 2^d bands (d = 0: a single band, the same as a Mat)
def Bands.zeros(+d: Nat, +r: Nat, +c: Nat) -> Bands<r, c>:
  match d:
    case 0n:
      BLeaf{Mat.zeros(r, c)}
    case 1n+q:
      # bend-lint: disable-next bend-lint-rules/performance/missed_fork -- bands are built once at load not-expected-because: forking them measured as no change (NOTES 2026-10-16)
      BNode{Bands.zeros(q, half(r), c), Bands.zeros(q, Nat.sub(r, half(r)), c)}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=bend-ml-tensor-array@0.1.19.0/main.bend&name=Bands
  https://jend.leeeet.dev/definition.txt?path=bend-ml-tensor-array@0.1.19.0/main.bend&name=Mat.zeros
  https://jend.leeeet.dev/definition.txt?path=bend-ml-tensor-array@0.1.19.0/main.bend&name=half