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
andy(t) = dt^2 + et + f
then the result is returned as[[a,b,c],[d,e,f]]
, where thea,b,c,...
are in double-double precision
Parameters:
Name | Type | Description |
---|---|---|
ps | number[][] | 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]] |