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Linear Extrapolation Horizon Amplification Tool

Calculate linear extrapolation horizon amplification from explicit caller-supplied inputs.

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Description

Return leftWeight = 1 - parameter, rightWeight = parameter, and the sum of their absolute values as amplification.

An interpolation weight, geometric extrapolation distance, and mathematical error bound describe different quantities. A curvature-based bound needs assumptions about the underlying function, not just a computed coordinate.

Return leftWeight = 1 - parameter, rightWeight = parameter, and the sum of their absolute values as amplification.

When to use this tool

Use Linear Extrapolation Horizon Amplification when you need one explicit interpolation error or amplification component.

How to use the tool and how it works

  1. Enter parameter. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read leftWeight, rightWeight, amplification. Use the output convention below.

Return leftWeight = 1 - parameter, rightWeight = parameter, and the sum of their absolute values as amplification.1

Input fieldMeaning and unitsAccepted input
parameterNormalized interpolation coordinate under the stated domain; may permit extrapolation.Required. Finite number.
Output fieldInterpretationReturned shape
leftWeightLeft WeightRequired. Finite number.
rightWeightRight WeightRequired. Finite number.
amplificationAmplificationRequired. Finite number.
json
{
  "input": {
    "parameter": 2
  },
  "output": {
    "leftWeight": -1,
    "rightWeight": 2,
    "amplification": 3
  }
}

Limitations and assumptions

  • Inside [0, 1] amplification is one; outside it measures value-error amplification under these linear weights, not a probabilistic error estimate.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Establish valid derivative bounds and compare methods or measurements before claiming a prediction-error guarantee.

References

  1. Calculation and input contract: interpolation/linear-extrapolation-horizon-amplification — tool.io

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