A unit of measure for pressure.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10.0+
- watchOS 3.0+
You typically use instances of
NSUnit to represent specific quantities of pressure using the
Pressure is the normal force over a surface. The SI unit for pressure is the pascal (Pa), which is derived as one newton of force over one square meter (1Pa = 1N / 1m2).
NSUnit class defines its base unit as
newtons, and provides the following units, which are initialized using
NSUnit converters with the specified coefficients:
Newtons Per Meter Squared (Equivalent to Pascals)
Inches of Mercury
Millimeters of Mercury
Pounds Per Square Inch