Liouville's formula for certain class of linear operator equations of order n is derived. The result is applied to solving a linear second order operator equation.

What is Pearson correlation test, Pearson product moment correlation or Pearson r? Pearson’s correlation helps us understand the relationship between two quantitative variables when the relationship ...

Satterthwaite remarks that caution should be used in applying this formula where some of the ai are negative. The primary purpose of this paper is to investigate the validity of Satterthwaite's ...