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Update documentation

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RunasSudo 2021-01-15 15:24:01 +11:00
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@ -18,7 +18,7 @@ This functionality is not available on the Python command line.
This dropdown allows you to select how numbers (vote totals, etc.) are represented internally in memory. The options are:
* *Fixed*: Numbers are represented as fixed-precision decimals, up to a certain number of decimal places (default: 5).
* *Fixed (guarded)*: Numbers are represented as fixed-precision decimals with ‘guard digits’ – also known as [‘quasi-exact’ arithmetic](http://www.votingmatters.org.uk/ISSUE24/I24P2.pdf). If *n* decimal places are requested, numbers are represented up to 2*n* decimal places, and two values are considered equal if the absolute difference is less than (10^-*n*)/2.
* *Fixed (guarded)*: Numbers are represented as fixed-precision decimals with ‘guard digits’ – also known as [‘quasi-exact’ arithmetic](http://www.votingmatters.org.uk/ISSUE24/I24P2.pdf). If *n* decimal places are requested, numbers are represented up to 2*n* decimal places, and two values are considered equal if the absolute difference is less than (10<sup>−*n*</sup>)/2.
* *Rational*: Numbers are represented exactly as fractions, resulting in the elimination of rounding error, but increasing computational complexity when the number of surplus transfers is very large.
* *Native*: Numbers are represented as native integers or floating-point numbers. This is fast, but not recommended as unexpectedly large rounding errors may be introduced in some circumstances.