Discover what a log-normal distribution is, its financial applications, and how to calculate it, including using Excel for ...

Logarithms were in use for hundreds of years until mechanical machines were able to calculate larger numbers in the late 19th century, and eventually, computers took over the task in the 20th century.

Ordinary students of mathematics never learn to use logarithms properly, not so much owing to deficiency of explanation in the existing works as to the fact that they never meet in the course of ...