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 ...

A general definition of concentration function is proposed. Its connections with Lorenz-Gini curve and de Finetti's definition are analysed. A few possible applications of the new definition are ...

First we have proportional parts of all numbers up to 100; then on one page three-place logarithms of numbers and of the six trigonometric functions, natural and logarithmic.