BendtorchFast.ph_nw: def of bendtorch-fast@1.3.0.0
Import: import bendtorch-fast@1.3.0.0/main.bend as BendtorchFast
Lines 138-140 of bendtorch-fast@1.3.0.0/main.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-fast@1.3.0.0/main.bend&start_line=138&end_line=140

import Base

# the words of r·c elements, ceil(r·c / 2)
def ph_nw(+r: Nat, +c: Nat) -> Nat:
  Nat.div(Nat.add(Nat.mul(r, c), 1n), 2n)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul