Bendtorch.pexp: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/main.bend as Bendtorch
Lines 1340-1348 of bendtorch@1.3.0.0/main.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/main.bend&start_line=1340&end_line=1348

import Base

# a[j] = exp(a[j] - m) for j = idx..idx + k, their sum added to acc in order
def pexp(k: Nat, +idx: U32, +m: F32, acc: F32, r: Array<F32> & F32) -> AS:
  match k r:
    case 0n Tuple{a, +x}:
      +e = F32.exp((x - m : F32))
      AS{Array.set(F32, a, idx, e), (acc + e : F32)}
    case 1n+q Tuple{a, +x}:
      +e = F32.exp((x - m : F32))
      pexp(q, (idx + 1 : U32), m, (acc + e : F32), Array.get(F32, Array.set(F32, a, idx, e), (idx + 1 : U32)))

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.get
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.set
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.exp
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/main.bend&name=AS