R2 – Geometry and Trigonometry
Discover how Wave Numbers use angles, radians and trigonometric functions.
R3 – Multiplication Use of Trigonometry
This post covers the use of trigonometry in R3 multiplication. It also describes a trigonometric formula for multiplication. Finding the angles φx, φy and φz R3 multiplication uses trigonometry when it uses the cosines of the angles φx, φy and φz in the multiplication formula later in this post. The following is a description of […]
R2 – Multiplication -Trigonometry
This post covers features of a point in R2 and two methods for the multiplication of points. The first method is to multiply the R2 coordinates directly. The second method is to use multiplication formulae based on R2 trigonometry. Features of a Point The distance R of any point (a, b) from the origin is […]