On the Calculus of Fuzzy Variables in the Image and Likeness of Counting and Estimating Mineral Reserves and Resources

On a two-parameter family of fuzzy variables endowed with the meaning of inaccurately calculated and estimated reserves and resources—e.g., oil and gas—a pair of associative, commutative, and distributive algebraic operations are studied and the foundations of calculus resembling the calculus of complex variables are laid.