Inclination functions
Inclination function is one of the ways how to define the initial global geometrical imperfection. It is more general case, analogical to the simple inclination.
The imperfection may be defined by any "function", which is in basic a finite table - a function defined for a finite number of its domain values. The values between are linearly interpolated. The values outside the function domain are not extrapolated. Example is provided in the figure below.