المعادلة التفاضلية differential equationهي علاقة تربط بين متحول (متغير) مستقل واحد أو أكثر والدالة function المبحوث عنها التابعة لهذه المتحولات (التي يفترض أنها وحيدة التعيين) ومشتقات هذه الدالَّة بالنسبة لهذه المتحولات، التي يفترض أنها متحولات حقيقية وكذلك الدالة.
Joseph Pilsudiski is a Marshall and a Polish stateman who belongs to a noble Polish-Lithuanian family. Pilsudski grew up in an atmosphere full of talk of Russian tyranny and brutality in an attempt to quell the sense of Polish independence. His mothe
r was one of the mothers who read to their children or told tales and poems about the greatness of Poland and its greatness. Pilsudski studied medicine in Krakow from 1885 to 1886. He was tried in 1887 on charges of involvement in a conspiracy against the tsar, and was sentenced to exile to eastern Siberia for five years. In Siberia Pilsudski developed his ideas and systems, and became a socialist .
Francisco Pizarro is a Spanish military commander and a pioneer for a number of South American countries. He was born in Tropilo, a southwestern Spanish. He did not have wealth or money. Raised the peasantry, and lived illiterate illiterate. He began
his career militarily in Italy and then in India in 1502, then settled in Panama and worked in cattle breeding, earning a bit of wealth. Pizarro sought adventure, chose to try his luck and was captain after 50, and collaborated with another adventurer Diego d'Almagro in 1524 to try to discover the kingdoms of the South in America, especially that the success of Cortez in Mexico restored the hope of finding empires in South American.
The first settlement operations occurred in North America more than 20,000 years ago, when the Mongolian Mughal tribes crossed the Bering Straits from northeast Asia to the Americas from the far north. The Eskimos settled on the frozen coast and were
confined to hunting the sea elephant, whales, bears and ice foxes, while other Indians lived hunting, fishing and picking up grain.
