fastTwoDiff

fastTwoDiff(a: number, b: number): number[]

Defined in basic/fast-two-diff.ts:13

Returns the difference and exact error of subtracting two floating point numbers. Uses an EFT (error-free transformation), i.e. a-b === x+y exactly. The returned result is a non-overlapping expansion (smallest value first!).

• precondition: abs(a) >= abs(b) (a fast test that can be used is (a > b) === (a > -b))

See https://people.eecs.berkeley.edu/~jrs/papers/robustr.pdf

Parameters:

Name	Type
a	number
b	number

Returns: number[]