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There are functions that divide by the value zero in specific casees or series that linearly subtract variables indefinitely. Essentially, when you start using algebraic functions, you can run into rendered values of -infinity especially in limits as x approaches -infinity.
But the concept of negative really has just 2 connotations. Either that a set of positive integers that zero is improperly labeled but should be just another positive value like negative celsius or fahrenheit. However, it can also relate to bipolar phases as simply a qualitative opposite by exclusion but the same units and the absolute value of the coefficient of its magnitude. When the phase is measured, the pole you don't measure is considered negative and if the variable happens to be a subfunction that has a zero in its denominator, then again, RENDERED -infinity as in bizarro infinity.
Even negative kelvin is actually just less than the additional entropy in a given atom or system of atoms that is needed to compose the particles, their bonds, end the empty space between them with the same time meter as surrounding spacetime. The temperature of the vacuum is slightly above absolute zero so colder temperatures also radiate as the surrounding spacetime flows in to maintain literal thermal equilibrium.
The OP is as correct as he lives off BBCs and the energy of the universe. Om mano pene hung!
