Description
Return blockOffset=floor((section-referenceSection)/sectionsPerBlock) and withinBlock as the nonnegative remainder.
Laboratory records distinguish specimen identity, sampling coverage, retained quantities, processing times, image scale, and measurement uncertainty. Areas, volumes, counts, and source-support flags measure different aspects of a record. A local calculation does not identify tissue or establish diagnostic adequacy.
Return blockOffset=floor((section-referenceSection)/sectionsPerBlock) and withinBlock as the nonnegative remainder.
When to use this tool
Use Block Section Index Offset when you need this specimen-record, sampling, processing-time, dimensional, or uncertainty calculation.
How to use the tool and how it works
- Enter section, referenceSection, sectionsPerBlock. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read blockOffset, withinBlock. Use the output convention below.
For nonnegative integer section and referenceSection and positive sectionsPerBlock use exact integer subtraction and Euclidean division. Return blockOffset=floor((section-referenceSection)/sectionsPerBlock) and withinBlock as the nonnegative remainder.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| section | Section | Required. Safe integer; minimum 0. |
| referenceSection | Reference Section | Required. Safe integer; minimum 0. |
| sectionsPerBlock | Sections Per Block | Required. Safe integer; minimum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| blockOffset | Block Offset | Required. Safe integer. |
| withinBlock | Nonnegative Euclidean remainder below sectionsPerBlock. | Required. Safe integer. |
{
"input": {
"section": 12,
"referenceSection": 2,
"sectionsPerBlock": 4
},
"output": {
"blockOffset": 2,
"withinBlock": 2
}
}Limitations and assumptions
- Inputs are section indices on one supplied numbering scheme. Negative offsets round down rather than toward zero; no tissue block identity, missing sections, or physical depth is inferred.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Use validated laboratory procedures, traceable measurements, and authenticated specimen records for a complete assessment. Check the relevant sampling and processing assumptions before interpreting a local quantity.
References
Similar or alternative tools
- Tissue Block Trim Loss Remainder
A supplied block-thickness budget, without instructions for specimen preparation.
- Voice Cycle Boundary Phase Token
Partition supplied periodic voice-trace sample indices with explicit exact-boundary ownership.