Jerry
28 lines
871 B
Markdown
28 lines
871 B
Markdown
# analyze_tolerance
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## API Definition
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```python
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def analyze_tolerance(value: ScalarLike, *, method: ToleranceMethod = 'worst_case') -> ToleranceAnalysis
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```
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*Source: tolerance.py*
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## Import Surface
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- top-level: `from simplecadapi import analyze_tolerance`
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## Description
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Propagate source manufacturing tolerances through a scalar expression.
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``worst_case`` returns guaranteed interval bounds. Affine chains are
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dependency-aware, so repeated variables such as ``x - x`` cancel exactly;
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nonlinear chains use conservative interval arithmetic. ``rss`` performs a
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first-order root-sum-square calculation using analytic sensitivities.
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Unit-aware variables are converted to canonical CAD units before
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propagation. The returned analysis reports the inferred physical dimension
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and canonical result unit. Every variable in the expression must declare a
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source tolerance.
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