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As formulas are entirely constituted with symbols of various types, many symbols are needed for expressing all mathematics. The most basic symbols are the decimal digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9), and the letters of the Latin alphabet.
The following is a list of the best-selling Japanese manga series to date in terms of the number of collected tankōbon volumes sold. All series in this list have at least 20 million copies in circulation. This list is limited to Japanese manga and does not include manhwa, manhua or original English-language manga.
Gross domestic product (GDP) is the market value of all final goods and services from a nation in a given year. [2] Countries are sorted by nominal GDP estimates from financial and statistical institutions, which are calculated at market or government official exchange rates.
Given two linearly independent vectors a and b, the cross product, a × b (read "a cross b"), is a vector that is perpendicular to both a and b, [1] and thus normal to the plane containing them. It has many applications in mathematics, physics, engineering, and computer programming.
The HDI was first published in 1990 with the goal of being a more comprehensive measure of human development than purely economic measures such as gross domestic product. The index incorporates three dimensions of human development: a long and healthy life, knowledge, and decent living standards.
Comparisons of national income are also frequently made on the basis of purchasing power parity (PPP), to adjust for differences in the cost of living in different countries (see List of countries by GDP (PPP) per capita).
The following is a list of ongoing armed conflicts that are taking place around the world. Criteria. Conflict deaths in the 17 deadliest conflicts 2015–2020. This list of ongoing armed conflicts identifies present-day conflicts and the death toll associated with each conflict. The criteria of inclusion are the following:
