Package Exports

robust-sum

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Readme

robust-sum

Computes the sum of two increasing non-overlapping sequences of floats as an increasing non-overlapping sequence. This can be used to perform exact arithmetic calculations on floating point values.

For more information, see:

Jonathan Richard Shewchuk, "Adaptive precision floating-point arithmetic and fast robust geometric predicates". 1997

Install

    npm install robust-sum

Example

var robustSum = require("robust-sum")

var seq = robustSum([1, 64], [1e-64, 1e64])
console.log("result = ", seq)

API

`require("robust-sum")(a, b)`

Computes the sum of two non-overlapping increasing sequences of floats exactly as a non-overlapping increasing sequence of floats.

a is a non-overlapping sequence of floats that is increasing in magnitude
b is a non-overlapping sequence of floats that is increasing magnitude

Returns A non-overlapping increasing sequence that encodes the result of a+b

Credits

Based on JRS' robust geometric predicates for floating point arithmetic.