|a type of physical force over a region such that items moving throughout the region can store energy ''without loss'', as in the planetary system and electrical products<ref>The mathematical definition of a conservative field -- which arises in [[multivariable calculus]] -- is that a scalar potential exists for the function and, alternatively, it is [[irrotational]].</ref> | |a type of physical force over a region such that items moving throughout the region can store energy ''without loss'', as in the planetary system and electrical products<ref>The mathematical definition of a conservative field -- which arises in [[multivariable calculus]] -- is that a scalar potential exists for the function and, alternatively, it is [[irrotational]].</ref> |