Torque Calculator implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t5-010

Effect

Computation or source lookup only

Input and validation requirements

The extreme finite inputs r=1e308 and F=1e308 overflow the plain JavaScript arithmetic result to Infinity instead of producing a finite torque. The specification also leaves angle units and sign conventions implicit, creating additional ambiguity.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "r_m": 0.4,
    "F_N": 50,
    "theta_deg": 30,
    "rotation_sense": "CCW"
  },
  "expected_outputs": {
    "torque_Nm": 10,
    "direction": "CCW"
  },
  "working": "sin(30°)=0.5. τ=rFsinθ=(0.4 m)(50 N)(0.5)=20×0.5=10 N·m. The supplied rotation sense is CCW, so direction=CCW."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche5/tranche5-results.json