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Since the office was established in 1789, 45 men have served in 46 presidencies. The first president, George Washington, won a unanimous vote of the Electoral College. [4] Grover Cleveland served two non-consecutive terms and is therefore counted as the 22nd and 24th president of the United States, giving rise to the discrepancy between the ...
Eigenvalues and eigenvectors. In linear algebra, an eigenvector (/ ˈaɪɡən -/ EYE-gən-) or characteristic vector is a vector that has its direction unchanged by a given linear transformation. More precisely, an eigenvector, , of a linear transformation, , is scaled by a constant factor, , when the linear transformation is applied to it: .
Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic. It is 20 to 40 times more potent than heroin and 100 times more potent than morphine; [ 9 ] its primary clinical utility is in pain management for cancer patients and those recovering from painful surgeries. [ 10 ][ 11 ] Fentanyl is also used as a sedative ...
The Declaration of Independence, formally titled The unanimous Declaration of the thirteen united States of America in both the engrossed version and the original printing, is the founding document of the United States. On July 4, 1776, it was adopted unanimously by the 56 delegates to the Second Continental Congress, who convened at the ...
In 1973, historian Richard B. Morris identified seven figures as key founders, based on what he called the "triple tests" of leadership, longevity, and statesmanship: John Adams, Benjamin Franklin, Alexander Hamilton, John Jay, Thomas Jefferson, James Madison, and George Washington.
Logic. Logic studies valid forms of inference like modus ponens. Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical truths. It examines how conclusions follow from premises based on the structure of arguments alone, independent of their topic ...
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself. However, 4 is composite because it is a ...
A significant 2015 study by the National Center for Transgender Equality surveyed nearly 28,000 transgender people in the United States, finding that 35% identified as non-binary or genderqueer. Among them, 84% used pronouns different from those associated with the gender on their birth certificates. The breakdown of preferred pronouns was 37% ...