Description
Calculate a counter increment under an explicit reset flag.
A sequence rule specifies how terms relate. Checking one transition, advancing a recurrence, and bounding an infinite tail answer different questions. A calculation from supplied coefficients assumes that rule; it does not infer it from observations.
Calculate a counter increment under an explicit reset flag.
When to use this tool
Use it for cumulative sum reset boundary delta when the required inputs and conventions are already available.
How to use the tool and how it works
- Enter previousTotal, currentTotal, reset. Use the stated units and boundary conventions.
- Run the calculation. Correct any input error before interpreting a result.
- Read increment. Inspect any known, defined, inclusion, or boundary flags before interpreting numeric values.
Calculate increment as currentTotal minus previousTotal, except that a supplied reset flag makes the increment equal currentTotal.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| previousTotal | Previous Total | Required. Finite number. |
| currentTotal | Current Total | Required. Finite number. |
| reset | Reset | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| increment | Increment | Required. Finite number. |
{
"input": {
"previousTotal": 100,
"currentTotal": 20,
"reset": true
},
"output": {
"increment": 20
}
}Limitations and assumptions
- The tool does not detect resets, distinguish rollover, or infer unobserved counter changes. Both totals must use the same unit and zero convention.
- The field tables describe structural bounds; the mechanics also state cross-field requirements. Malformed input shapes, disallowed keys, and invalid domains cause input errors. Results must remain finite and within the declared output contract. A successful false flag or zero placeholder is distinct from an error.
- Numeric arithmetic uses binary floating point. Exact comparisons have no hidden tolerance or decimal rounding; negative zero is exported as zero. Decimal-text integer operations retain the exactness specifically stated above.
Alternative or Complementary methods
For cumulative sum reset boundary delta, check the source records and the supplied rule before comparing the result with another method. Use exact integer or symbolic arithmetic when a numerical equality is insufficient.
References
Similar or alternative tools
- Geometric Partial Sum Tail Ratio
Calculate a signed infinite geometric tail from its first omitted term and ratio.
- Affine Recurrence Two Step Constant
Return the coefficients obtained by composing a supplied affine recurrence twice.