Greeks or Hellenes (/ ˈ h ɛ l iː n z /; Greek: Έλληνες, Éllines) are an ethnic group and nation native to Greece, Cyprus, southern Albania, Anatolia, parts of Italy and Egypt, and to a lesser extent, other countries surrounding the Eastern Mediterranean and Black Sea.

Delta值（δ），又称对冲值：是衡量标的资产价格变动时，期权价格的变化幅度 。 用公式表示： Delta=期权价格变化/标的资产价格变化. 期权的delta值介于-1到1之间。 对于看涨期权，Delta的变动范围为0到1，深实值看涨期权的Delta趋增至1，平值看涨期权Delta为 0.5，深虚值看涨期权的Delta则逼近于0。对于看跌期权，Delta变动范围为-1到0, 深实值看跌期权的Delta趋近-1，平值看跌期权的 Delta为-0.5，深虚值看跌期权的Delta趋近于0。 Delta是权证的一个重要统计指标，又 …

Ancient Greece (Ancient Greek: Ἑλλάς, romanized: Hellás) was a northeastern Mediterranean civilisation, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity (c. 600 AD), that comprised a loose collection of culturally and linguistically related city-states and communities.

2025年3月26日 · Ancient Greek civilization was concentrated in what is today and along the western coast of Turkey. However, ancient Greek colonists established cities all around the and along the coast of the Black Sea. Was ancient Greece a democracy? Each ancient Greek city-state had its own government. Common forms of government included tyranny oligarchy.

2020年4月27日 · In this collection of resources, we examine such lasting ideas as democracy, the architectural orders, the Olympic Games, the Hippocratic oath, drama and Pythagoras ' theorem. We also look at such now-familiar structures as the theatre and stadium, and the lasting influence of the Greeks' great contribution to world literature, Homer 's Iliad.

The Greeks, or Hellenes, are the natives of Greece and other countries around the Mediterranean Sea like Cyprus, southern Albania, Italy, Turkey, and Egypt. Ancient Greek civilization, the period following Mycenaean civilization (which ended about 1200 BCE) lasted up to the death of Alexander the Great in 323 BCE. It was a period of political ...

2013年11月13日 · Ancient Greece is the birthplace of Western philosophy (Socrates, Plato, and Aristotle), literature (Homer and Hesiod), mathematics (Pythagoras and Euclid), history (Herodotus), drama (Sophocles, Euripides, and Aristophanes), …

One of the most brilliant civilizations in world history, that of the ancient Greeks laid many of the foundations for the whole of Western civilization. It produced radical innovations in a wide range of fields – philosophy, science, art, architecture, government and politics, and more.

About 2,500 years ago Greece was one of the most important places in the ancient world. The Greeks were great thinkers, warriors, writers, actors, athletes, artists, architects and politicians....

2010年3月5日 · Ancient Greece saw advances in art, poetry and technology, and is known as the age in which the polis, or city-state, was invented. The polis became the defining feature of Greek political life for...