get-implicit-form1-dd-with-running-error
function getImplicitForm1DdWithRunningError(ps: number[][]): object
Defined in implicit-form/double-double/get-implicit-form1-dd-with-running-error.ts:31
Returns a double-double precision implicit form of the given line segment
and a coefficientwise error bound.
Returned coefficients are subscripted to match their monomial's variables,
e.g. vₓᵧ
is the coefficient of the monomial vₓᵧxy
- the implicit form is given by:
vₓx + vᵧy + v = 0
- intermediate calculations are done in double-double precision and this is reflected in the error bound
- the error bound returned first needs to be scaled by
γγ3 === (3*u*u) / (1 - 3*u*u) === 3.697785493223493e-32
, whereu === Number.EPSILON / 2
before use - adapted from Indrek Mandre
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Parameters:
Name | Type | Description |
---|---|---|
ps | number[][] | a line segment given as an array of its control points, e.g. [[1,2],[3,4]] |
Returns: object
Name | Type |
---|---|
coeffs | { vₓ : number[]; vᵧ : number[]; v : number[] } |
errorBound | { v_ : number } |