Lorentz Force 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

t5-201

Effect

Computation or source lookup only

Input and validation requirements

The extreme-magnitude vector causes the magnetic cross-product component (1e308)(1e308)=1e616, which overflows ordinary JavaScript IEEE-754 arithmetic to Infinity. The instrument should reject or explicitly flag this input instead of treating Infinity as a normal finite result.

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": {
    "q": 0.000002,
    "v": [
      0,
      2000,
      0
    ],
    "E": [
      30000,
      0,
      0
    ],
    "B": [
      0,
      0,
      0.5
    ],
    "units": {
      "q": "C",
      "v": "m/s",
      "E": "V/m",
      "B": "T"
    }
  },
  "expected_outputs": {
    "F": [
      0.062,
      0,
      0
    ],
    "magnitude": 0.062
  },
  "working": "v×B = [vyBz−vzBy, vzBx−vxBz, vxBy−vyBx] = [2000×0.5−0×0, 0×0−0×0.5, 0×0−2000×0] = [1000,0,0]. E+v×B = [30000,0,0]+[1000,0,0] = [31000,0,0]. F = q(E+v×B) = 2×10^-6×[31000,0,0] = [0.062,0,0] N. |F| = sqrt(0.062^2+0^2+0^2) = 0.062 N."
}

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