Although there are many functions in the base package of R, sometimes there may not be a function that does exactly what you want. In this case, R allows users to create their own functions and call ...

What Are Functions and Formulas? The key difference between formulas and functions is that anyone can create a formula, whereas functions are predefined by Microsoft's programmers.

IN order to teach and illustrate the subject, the author in this small volume makes use of a number of interesting graphs relating mainly to technical and commercial subjects, many of them ...

(1) An Introduction to the Study of Geometry (2) Elementary Geometry (3) Geometry for Technical Students (4) Graphs and Imaginaries (5) Five-figure Tables of Mathematical Functions (6) Logarithms ...