2022-07-19

As one of the various methods for forming Modern Strategic Energy MSE, OPA can be a component of MSE=PGE (Proper Gravitational Energy)+OPA. Our calculator is a type of OPA, which includes addition, subtraction, multiplication, and division arithmetic operations. The multiplier in multiplication can be used as an OPA that is compatible with PGE in Modern Strategic Energy. If you can produce calculators, you can produce OPA.