Update docs for new sig_figs default in CmdStan#862
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bob-carpenter merged 2 commits intomasterfrom Mar 3, 2025
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src/reference-manual/transforms.qmd
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| Stan’s arithmetic is implemented using double-precision | ||
| floating-point numbers, which may cause computation to behave | ||
| differently than mathematics. For example, the lower bound constraint | ||
| is defined with a logarithm constraint which mathematically excludes |
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The constraint is positivity.
It's enforced with an exp() inverse transform of unconstrained parameters, which are always a finite non-zero number in arithmetic, but which can underflow to 0 or overflow to +infinity with floating-point representations.
src/reference-manual/transforms.qmd
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| a variance parameter that has been declared to be larger than 0. | ||
| In general, double-precision floating-point numbers cannot reliably store | ||
| more than 16 digits of a number in decimal. | ||
| See more about [Floating point Arithmetic in Stan user's guide](../stan-users-guide/floating-point.qmd). |
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- "Floating" and "Arithmetic" should not be capitalized.
- I'd make the link just "floating point arithmetic"
- Stan user's guide -> Stan User's Guide (italics and capitalized as a book title)
src/reference-manual/transforms.qmd
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| more than 16 digits of a number in decimal. | ||
| See more about [Floating point Arithmetic in Stan user's guide](../stan-users-guide/floating-point.qmd). | ||
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| These issues can be exacerbated by the fact that CmdStan stores the output to |
src/reference-manual/transforms.qmd
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| See more about [Floating point Arithmetic in Stan user's guide](../stan-users-guide/floating-point.qmd). | ||
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| These issues can be exacerbated by the fact that CmdStan stores the output to | ||
| CSV files with 8 digits accuracy by default. More digits can be requested by the user |
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<<{ since VERSION }>>Summary
Changes for stan-dev/cmdstan#1308
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