When the logarithmic function is approximated by sequences of algebraic functions, similar questions can be posed as in the case of other similar problems. So, for example, it is interesting to ...

Find a counter example (i.e. an input where they differ in value or solution sets), if not equivalent Solve equations involving linear, polynomial, radical, rational, exponential, or logarithmic ...

Logarithmic convexity type continuous dependence results for discrete harmonic functions defined as solutions of the standard $C^0$ piecewise-linear approximation to Laplace's equation are proved.