Trigonometry

Navigation and Trigonometry

Navigation and Trigonometry Each point is identified by a pair of coordinates, the intersection of a meridian and a parallel. The Latitude is the parallel. The Equator is the parallel located at . Moving North, […]

Trigonometry

Spherical trigonometry

Spherical trigonometry The spherical trigonometry is the branch of spherical geometry which deals with spherical triangles defined by great circles on the sphere. It allows us to calculate the trigonometric functions of the sides and […]

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Trigonometry

Selected Trigonometry Exercises

Selected Trigonometry Exercises These are the selected trigonometry exercises and problems to solidify the concepts shown in this site. Exercise 1: A surveyor observes that at a point , located on level ground a distance […]

Geometry

Quadrilaterals

Quadrilaterals A quadrilateral is a polygon that has four sides. The line segment sides lie within a single plane. Quadrilaterals with non-coplanar sides are called “SKEW”.   PARALLELOGRAM: A parallelogram is a quadrilateral in which […]

Android

Simple Trigo Calculator

The simple Trigo Calculator was designed with the trigonometry functions in mind. The following functions can be calculated in normal mode: sin(x), cos(x), tan(x), sinh(x), cosh(x), tanh(x). In SHIFT mode we get the inverse functions: […]

Java

Number of Occurrences

The following Java Code generates random numbers. Put them in an array and prints the number of times each one occurs in the Array. Only generated numbers will be listed.   import java.util.Random;public class Histograms […]