Mathematical operators are provided for many PostgreSQL types. For types without standard mathematical conventions (e.g., date/time types) we describe the actual behavior in subsequent sections.
Assorted math functions, including linear interpolation, list operations (sums, mean, products), convolution, quantization, log2, hyperbolic trig functions, random ...
They evaluate the type of rash (each type of psoriasis has a different type of rash ... In addition, they will likely ask you if you have any other risk factors for psoriasis, such as: Inverse ...