1. What Are The Applications Of Spherical Polar Coordinates?
The term spherical is drawn from the term sphere which means a geometrical object in 3-dimensional space. Therefore, spherical coordinates are generally easy and understandable when we deal with something that is somewhat spherical, for example, a ball or a planet, or maybe black holes, and even planetary objects. The basic example that we can give will be the use of spherical coordinates while dealing with the latitude and the longitude of our planet. There are other examples of the fields where Spherical coordinate or Polar coordinate systems are mostly used.
2. Who Brought The Term Polar Coordinate System To Light?
The polar coordinate system is a two-dimensional coordinate system that was invented in 1637 by a French Mathematician called René Descartes (1596–1650). Several decades later Descartes published his two-dimensional coordinate system. Sir Isaac Newton (1640–1727) worked and presented ten different coordinate systems. One of them was the polar coordinate system. Newton and others used the polar coordinate system for plotting a complex curve which is known as a spiral. It was the Swiss Mathematician known as Jakob Bernoulli (1654–1705) who first used a polar coordinate system for a very wider array of calculus problems. And also coined terms such as "pole" and "polar axis" that we still use today in polar coordinate systems.