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    • Formats a pressure value (QNH/altimeter setting) with its unit label.

      Default precision:

      • 'inHg': 2 decimal places
      • 'hPa': 0 decimal places (integers are standard for hPa in aviation)
      • 'mmHg': 0 decimal places

      Parameters

      • value: number

        Pressure value in the given unit.

      • unit: PressureUnit

        The pressure unit to display.

      • Optionaloptions: FormatOptions

        Optional formatting overrides.

      Returns string

      Formatted pressure string such as "29.92 inHg" or "1013 hPa".