| <!-- | |
| Copyright (C) 2026 HCALC contributors | |
| SPDX-License-Identifier: AGPL-3.0-only | |
| --> | |
| # HCALC J production Core | |
| **Owner:** Foundry J Core (implements) / HCALC Spec (`../spec/PRODUCTION.md`). | |
| **Path (authoritative):** `/workspace/hcalc/j/` | |
| **Locale:** `hcalc` (load `hcalc.ijs`). | |
| ## Verbs (PRODUCTION.md) | |
| | Verb | Role | | |
| |------|------| | |
| | `tp_from_p64` | Diagonal Tp from P64 α (**spec-def**) | | |
| | `c_wrap` | State scale-or-id (**spec-adapt**; ≠ Foundry soft_project **43**) | | |
| | `lam_m_from_bound` | Scalar Λm from op-norm bound | | |
| | `hcalc_xi_apply` | Ξ(t,y)=ξ·y+g | | |
| | `hcalc_step` | NestedFaithful one step (**≠** `rec_step`) | | |
| | `hcalc_run` | Iterate until residual < tol | | |
| InstanceBridge parameter table is diagnostic (`instance_bridge_table`) for **FoundryAdditive** mode — never `rfl` / never NestedFaithful ≡ prop **39**. | |
| ## Smoke | |
| ```bash | |
| /home/box/j/j9.7/bin/jconsole -js "load 'hcalc.ijs'" "cocurrent 'hcalc'" "echo smoke ''" "exit ''" | |
| ``` | |