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Seedsharing Pure Live Count Factor Tool

Calculate seedsharing pure live count factor from explicit caller-supplied inputs.

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Description

For nonnegative integer seeds, purity and germination in (0,1], and nonnegative requestedLive return expectedLive=seeds*purity*germination and requiredCount=ceil(requestedLive/(purity*germination)).

Garden and resource-design calculations combine measured lengths, areas, water volumes, material fractions, travel, and evidence records. A useful budget needs consistent units and clear overlap, exclusion, and denominator rules. Supplied geometry and efficiencies describe a model rather than verified site performance.

For nonnegative integer seeds, purity and germination in (0,1], and nonnegative requestedLive return expectedLive=seeds*purity*germination and requiredCount=ceil(requestedLive/(purity*germination)).

When to use this tool

Use Seedsharing Pure Live Count Factor when you have supplied site dimensions or resource records and need the stated geometry, budget, or coverage measure.

How to use the tool and how it works

  1. Enter seeds, purity, germination, requestedLive. 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 expectedLive, requiredCount. Use the output convention below.

For nonnegative integer seeds, purity and germination in (0,1], and nonnegative requestedLive return expectedLive=seeds*purity*germination and requiredCount=ceil(requestedLive/(purity*germination)).1

Input fieldMeaning and unitsAccepted input
seedsSeedsRequired. Safe integer; minimum 0.
purityFraction of seed count on the supplied pure-seed basis, in (0,1].Required. Finite number; maximum 1; strictly above 0.
germinationSupplied germination fraction in (0,1], not a percent numeral.Required. Finite number; maximum 1; strictly above 0.
requestedLiveRequested LiveRequired. Finite number; minimum 0.
Output fieldInterpretationReturned shape
expectedLiveExpected LiveRequired. Finite number.
requiredCountRequired CountRequired. Safe integer.
json
{
  "input": {
    "seeds": 100,
    "purity": 0.9,
    "germination": 0.8,
    "requestedLive": 50
  },
  "output": {
    "expectedLive": 72,
    "requiredCount": 70
  }
}

Limitations and assumptions

  • Purity and germination are fractions rather than percent numerals. Expected live seeds need not be an integer and the calculation does not guarantee emergence, validate seed tests, or account for field survival.
  • 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 verified site measurements and suitable physical or resource models for a complete design. Check units, overlap, losses, capacity, and whether an accounting share represents the intended quantity.

References

  1. Calculation and input contract: permaculture/seedsharing-pure-live-count-factor — tool.io

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