Analytic geometry and principles of algebra (1913)
Ziwet, Alexander, 1853-1928, Hopkins, Louis Allen, joint author, Hedrick, E. R. (Earle Raymond), 1876-1943 · New York, The Macmillan Company · leaf 182
It can be proved in the same way that for a polynomial of degree nwe have /(xi + A) = fixi) + f(xOh + ^-^^h^ + - +^-^^^^h-. This formula is a particular case of a general proposition of the differ-ential calculus, known as Taylors theorem. It shows that the value of apolynomial for any value x = xi… … 172. The Parabola. The parabola can be defined as thelocus of a point ivhose distance from a fixed point is eqncd to itsdistance from a fixed line. The fixed point is called the focus,the fixed line the directrix, of the parabola. Let F (Fig. 63) be the fixed point, d the fixed line; then every…
Geometry, Analytic
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