History of physics Descartes has been dubbed the 'Father of Modern Philosophy', and much subsequent Western philosophy is a response to his writings, which are studied closely to this day. In particular, his "Meditations on First Philosophy" continues to be a standard text at most university philosophy departments. Descartes' influence in mathematics is equally apparent; the Cartesian coordinate system — allowing algebraic equations to be expressed as geometric shapes in a two-dimensional coordinate system — was named after him. He is credited as the father of analytical geometry, the bridge between algebra and geometry, important to the discovery of calculus and analysis. The
African philosophy in medicine and philosophy, and subsequently became a professor of philosophy at the universities of Halle Halle and Jena in Germany. Kenyan philosopher Henry Odera Oruka has distinguished what he calls four trends in modern African philosophy: ethnophilosophy, philosophical sagacity, nationalistic–ideological philosophy, and professional philosophy. In fact it would be more realistic to call them candidates for the position of African philosophy, with the understanding that more than one of them might fit the bill. (Oruka later added two additional categories: literary/artistic philosophy, such as the work of literary figures such as Ngũgĩ wa Thiong'o, Wole Soyinka, Chinua Achebe, Okot