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In mathematics, the Pythagorean theorem or Pythagoras' theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.
Joseph Fourier. Giovanni Plana. Siméon Poisson. Joseph-Louis Lagrange[a] (born Giuseppe Luigi Lagrangia[5][b] or Giuseppe Ludovico De la Grange Tournier; [6][c] 25 January 1736 – 10 April 1813), also reported as Giuseppe Luigi Lagrange[7] or Lagrangia, [8] was an Italian mathematician, physicist and astronomer, later naturalized French.
Square number. Square number 16 as sum of gnomons. In mathematics, a square number or perfect square is an integer that is the square of an integer; [ 1 ] in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 32 and can be written as 3 × 3.
Square (algebra) 5⋅5, or 52 (5 squared), can be shown graphically using a square. Each block represents one unit, 1⋅1, and the entire square represents 5⋅5, or the area of the square. In mathematics, a square is the result of multiplying a number by itself. The verb "to square" is used to denote this operation.
(The square bracket notation [] ... on the left-hand side of this equation is [+] . The coefficient ... 1764 1624 735 175 21 1 8 0 5040 13068
Fermat's Last Theorem states that no three positive integers (a, b, c) can satisfy the equation a n + b n = c n for any integer value of n greater than 2. (For n equal to 1, the equation is a linear equation and has a solution for every possible a and b. For n equal to 2, the equation has infinitely many solutions, the Pythagorean triples.)
Quadratic equation. In mathematics, a quadratic equation (from Latin quadratus ' square ') is an equation that can be rearranged in standard form as [1] where x represents an unknown value, and a, b, and c represent known numbers, where a ≠ 0. (If a = 0 and b ≠ 0 then the equation is linear, not quadratic.)
Quaternions derive from the four-square identity, which can be written as the product of two inner products of 4-dimensional vectors, yielding again an inner product of 4-dimensional vectors: (a·a) (b·b) = (a×b)· (a×b). This defines the quaternion multiplication rule a×b, which simply reflects Euler's identity, and some mathematics of ...