Skip to main content

to-power-basis-2nd-derivative-dd

function toPowerBasis_2ndDerivativeDd(ps: number[][]): number[][][]

Defined in to-power-basis/to-power-basis-2nd-derivative/double-double/to-power-basis-2nd-derivative-dd.ts:24

Returns the 2nd derivative of the power basis representation of a bezier curve of order cubic or less (with intermediate calculations done in double-double precision).

  • returns the resulting power basis x and y coordinate polynomials from highest power to lowest, e.g. if x(t) = at^2 + bt + c and y(t) = dt^2 + et + f then the result is returned as [[a,b,c],[d,e,f]], where the a,b,c,... are in double-double precision

Parameters:

NameTypeDescription
psnumber[][]an order 0,1,2 or 3 bezier curve given by an ordered array of its control points, e.g. [[0,0],[1,1],[2,1],[2,0]]