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atan2(y, x) returns the angle θ between the positive x-axis and the ray from the origin to the point (x, y), confined to (−π, π].Graph of (,) over /. In computing and mathematics, the function atan2 is the 2-argument arctangent.
On November 17, 2007, three Việt Tân members, US citizens Nguyen Quoc Quan, a mathematics researcher, and Truong Van Ba, a Hawaiian restaurant owner, and Frenchwoman Nguyen Thi Thanh Van, a contributor to Việt Tân's Radio Chan Troi Moi radio show, were arrested in Ho Chi Minh City. [13] when 20 security officers raided the house. [14]
In engineering problems, especially in the area of solar energy application, the solar azimuth angle, which can be computed from the x- and y-component of the vector pointing to the Sun using the atan2 function, normally measures from due North (positive y-axis) or due South (negative y-axis), this can be achieved by using atan2(x, y) or atan2 ...
Atan may refer to: Mathematics. arctangent (atan), a trigonometric function atan2, the two-argument function implementing the arctangent in many computer languages;
The province Ha Tinh includes Ha Tinh town and 8 districts: Cam Xuyen, Can Loc, Duc Tho, Huong Khe, Hương Sơn, Ky Anh, Nghi Xuan, Thach Ha. Provinces Nghe An include Vinh city and 17 districts: Anh Sơn , Con Cuong , Dien Chau , Do Luong , Hung Nguyen , Ky Son , Nam Dan , Nghi Loc , Nghia Dan , Que Phong , Quy Chau , Quy Hop , Quynh Luu ...
Contains the mountainous provinces to the west of south-central Vietnam. There are a significant number of ethnic minorities in the region. One province is along Vietnam's border with Laos, and four border Cambodia (Kon Tum borders both Laos and Cambodia). Southern Vietnam (Nam Bộ, Miền Nam) Southeast (Đông Nam Bộ, Miền Đông)
As China for centuries had referred to Đại Việt as Annam, Gia Long asked the Manchu Qing emperor to rename the country, from Annam to Nam Việt. To prevent any confusion of Gia Long's kingdom with Triệu Đà's ancient kingdom, the Manchu emperor reversed the order of the two words to Việt Nam. The name Vietnam is thus known to be used ...
Tản Viên Sơn Thánh (Chữ Hán: 傘圓山聖, 304 BCE - ?), or Sơn Tinh (山精) is one of The Four Immortals in traditional Vietnamese mythology. He is the god of Ba Vì mountain range [ 2 ] and figures also in the romance of Sơn Tinh - Thủy Tinh ("the God of the Mountain and the God of the Water").