In physical science and math, we encounter some models that can be analytically solved. This means that the properties of models are fully understood and determined by the analytical solutions.
In the literature, we will refer those models as:
exact soluble model
exact solvable model
exactly soluble model
exactly solvable model
Q1. I wonder whether the usage of exact, exactly, soluble and solvable are interchangeable?
Q2. When we say the solutions are analytical, are that both analytic solutions and analytical solutions are correct usage?