Units
Primitive units
The following built-in units are available:
- Mass
- lbm kg slug
- Length
- ft mile meter in mm cm km inch
- Time
- sec hr min millisec
- Linear speed
- knots
- Angular velocity
- hz rpm
- Linear acceleration
- G
- Angle
- percent nd deg rad % 1
- Volume
- gallon liter
- Force
- lbf newton
- Energy or work
- btu joule
- Voltage
- volt
- Current
- ampere amp
- Work
- btu joule
- Power
- horsepower watt hp kw
- Temperature
- degK kelvin degR rankine
- Pressure
- pa pascal psi
- Frequency
- hz rpm
- Charge
- coulomb
Combining units
- - indicates multiplication of units
- / indicates division
- ^ indicates exponentiation
For example, ft/sec/sec and ft/sec^2 (both of which mean the same thing) are units of linear acceleration.
To avoid ambiguity, - may not follow /. That is, ft/sec-sec is not allowed.