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Multiplication table of Nimbers; compare A051775, A051910. The nonzero elements form the Cayley table of Z 15, as shown below. Below the dual matrix, showing permuted binary Walsh matrices. The dark gray fields have an odd binary digit sum, and also form a permuted binary Walsh matrix. A closer look at these five permutations can be found here.
The oldest known multiplication tables were used by the Babylonians about 4000 years ago. [2] However, they used a base of 60. [2] The oldest known tables using a base of 10 are the Chinese decimal multiplication table on bamboo strips dating to about 305 BC, during China's Warring States period. [2] "Table of Pythagoras" on Napier's bones [3]
The multiplication sign (×), also known as the times sign or the dimension sign, is a mathematical symbol used to denote the operation of multiplication, which results in a product. [ 1 ] The symbol is also used in botany , in botanical hybrid names .
To reduce confusion between the multiplication sign × and the common variable x, multiplication is also denoted by dot signs, [4] usually a middle-position dot (rarely period): . The middle dot notation or dot operator , encoded in Unicode as U+22C5 ⋅ DOT OPERATOR , is now standard in the United States and other countries .
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After another limited free-agent market, MLB faces a new economic problem. Sports. Associated Press. Vince Lombardi's Packers say don't call Chiefs' quest for 3 straight titles a first.
A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.
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