Function applyCalibration

applyCalibration(spec: CalibrationSpec, raw: number): number
Applies a calibration formula to one raw sample value, with the same arithmetic as the Rust CalibrationSpec::apply that fills the exported calibrated_value column.

Non-finite input is not special-cased, again as in Rust: NaN stays NaN through identity, linear and non-empty polynomial formulas, while an empty polynomial gives -0 for any input. The spec is used as given; pass it through normalizeCalibration first if it may be incomplete.
Parameters
- spec: CalibrationSpec
  Calibration to apply.
- raw: number
  Raw reading, in volts.
Returns number
The calibrated value. An empty polynomial evaluates to -0.
Example
```
applyCalibration({ type: "linear", a: 2, b: -1 }, 3);          // 5
applyCalibration({ type: "polynomial", coeffs: [1, 0, 2] }, 3); // 1 + 2 * 9 = 19
```
- Defined in calibration.ts:281