In the documentation of each SAP2000 API function, parameters that have units associated with them are followed by one of the following abbreviations, to indicate the units for those parameters.
[L] = Length
[F] = Force, [F] = [ML/s2]
[M] = Mass
[s] = Time, seconds
[T] = Temperature
[cyc] = Cycles
[rad] = Radians (angle measurement)
[deg] = Degrees (angle measurement)
Combinations of these abbreviations are used in many cases. For example, moments are indicated as [FL] and stresses are indicated as [F/L2].
See Also
Accessing SAPp2000 From An External Application
Function Documentation Conventions
Visual Basic Concepts Used In The SAP2000 API