Malus's Law Polarization 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

t5-156

Effect

Computation or source lookup only

Input and validation requirements

The angle unit is unspecified. The input value 60 yields 25% transmission when interpreted as degrees but 90.70904852632809% when interpreted as radians, so the calculator can return a materially wrong result unless the unit convention is explicit or enforced.

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": {
    "I0_W_per_m2": 100,
    "theta": 0,
    "angle_unit": "degrees"
  },
  "expected_outputs": {
    "transmitted_intensity_W_per_m2": 100,
    "percent_transmission": 100
  },
  "working": "cos(0°)=1; cos²(0°)=1²=1; I=100×1=100 W/m²; percent=100×100/100=100%."
}

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