diff options
Diffstat (limited to 'filter.bqn')
| -rw-r--r-- | filter.bqn | 10 |
1 files changed, 5 insertions, 5 deletions
@@ -38,13 +38,13 @@ o ← ≠◶⟨•Import∘"options.bqn", ⊑⟩ •args # 𝕨 is ⟨result coefficients , 𝕩 coefficients⟩. Filter ← { ⟨i0⟩‿⟨o0⟩ 𝕊𝕩: - 1↓ (×⟜o0+i0⊸×)` 0∾𝕩 + 0 (×⟜o0+i0⊸×)` 𝕩 ;⟨i0,i1⟩‿⟨o0⟩ 𝕊𝕩: - b0←a1←a0←0 ⋄ coeff←∾𝕨 - { b0↩+´coeff×⟨a0↩a1,a1↩𝕩,b0⟩ }¨ 𝕩 + a1←a0←0 + 0 (+´(∾𝕨)×{⟨a0↩a1,a1↩𝕩,𝕨⟩})` 𝕩 ;⟨i0,i1,i2⟩‿⟨o0,o1⟩ 𝕊𝕩: - b1←b0←a2←a1←a0←0 ⋄ coeff←∾𝕨 - { b1↩+´coeff×⟨a0↩a1,a1↩a2,a2↩𝕩,b0,b0↩b1⟩ }¨ 𝕩 + b0←a2←a1←a0←0 + 0 (+´(∾𝕨)×{⟨a0↩a1,a1↩a2,a2↩𝕩,b0,b0↩𝕨⟩})` 𝕩 ;coeff 𝕊𝕩: a‿b ← 0×coeff # accumulators for input and result c ← ∾coeff |