At first thought it might seem that the zeroth law is obvious, but its truth must be verified by experiment.
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
So rename this zeroth index parameter to course when performing marshalling.
There's a zeroth law the zeroth law every one of these laws basically defines the quantity in thermodynamics and then defines the concept.