Prismatic Blade Length Width Ratio
Measured prismatic blade linear dimension ratio only, no microblade type or manufacture technique identity. Caller independently establishes sample/context/calibration applicability; not definitive chronology, provenance, taxonomy, disease or human identity.
Description
A blade's length-to-width ratio describes measured shape.
A blade's length-to-width ratio describes measured shape.1
That ratio alone does not establish technological classification or prismatic production. Use Prismatic Blade Length Width Ratio to evaluate the supplied inputs under the model explained below.
When to use Prismatic Blade Length Width Ratio
Use Prismatic Blade Length Width Ratio to evaluate the supplied inputs under the model explained below. Establish the units, measurement scope and model assumptions before entering values.
How to use Prismatic Blade Length Width Ratio and understand its results
- Establish the units, measurement scope and model assumptions before entering values.
- Enter Observed blade length mm, Observed blade width mm using the field table and validation rules below, then run the tool.
- Read Observed length width ratio; interpret the units, signs, ordering and unknown-value placeholders described below.
- Correct reported input errors and rerun. Apply successful results according to their specific meanings and check the assumptions before using them in a decision.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedBladeLengthMm | Observed blade length mm | number | Required; constraints below |
| observedBladeWidthMm | Observed blade width mm | number | Required; constraints below |
Enter positive measured blade length and width in mm. Return their dimensionless ratio; no classification threshold or production method is selected.
lengthWidthRatio=lengthMm/widthMm Use the field order, units and branch conditions described above.
| Output field | Meaning | Value type |
|---|---|---|
| observedLengthWidthRatio | Observed length width ratio | number |
{
"input": {
"observedBladeLengthMm": 30,
"observedBladeWidthMm": 10
},
"output": {
"observedLengthWidthRatio": 3
}
}Limitations and assumptions
That ratio alone does not establish technological classification or prismatic production. Apply the exact scope and assumptions explained above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are explained above; extremely large inputs or outputs can also be rejected. Input errors differ from successful false results, empty match lists and unknown-evidence placeholders.
Alternative or Complementary methods
Use Flake Platform Angle Measurement Tool for a related task: A platform angle is measured between independently defined planar ray directions.
Use Use-Wear Polish Classifier for a related task: Use-wear interpretation combines independently observed surface features with a reference model.
References
-
Prismatic Blade Length Width Ratio — tool.io
Similar or alternative tools
- Flake Platform Angle Measurement Tool
A platform angle is measured between independently defined planar ray directions.
- Use-Wear Polish Classifier
Use-wear interpretation combines independently observed surface features with a reference model.