Start with a tangent approximation
A first-order approximation near p is ′(p)(). It matches both the function value and slope at the center.
Brain Station Advanced · YouTube · 8:27
Build Taylor polynomials by matching a function and its successive derivatives at a chosen center.
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A first-order approximation near p is ′(p)(). It matches both the function value and slope at the center.
Adding f″(p)()²/2! matches the second derivative as well. Further coefficients use higher derivatives divided by the corresponding factorials.
At this is the Maclaurin construction. For sine it yields ³/3!+x⁵/5!−⋯; in general, matching all derivatives alone does not guarantee that an infinite Taylor series equals the function away from its center.
A first-order approximation near p is ′(p)(). It matches both the function value and slope at the center.
Adding f″(p)()²/2! matches the second derivative as well. Further coefficients use higher derivatives divided by the corresponding factorials.
At this is the Maclaurin construction. For sine it yields ³/3!+x⁵/5!−⋯; in general, matching all derivatives alone does not guarantee that an infinite Taylor series equals the function away from its center.
A first-order approximation near p is ′(p)(). It matches both the function value and slope at the center. Adding f″(p)()²/2! matches the second derivative as well. Further coefficients use higher derivatives divided by the corresponding factorials. At this is the Maclaurin construction. For sine it yields ³/3!+x⁵/5!−⋯; in general, matching all derivatives alone does not guarantee that an infinite Taylor series equals the function away from its center.