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An Erlang decimal arithmetic library
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docmerlin/erlang-decimal
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An Erlang decimal arithmetic library.
Quick start:
$ make
...
$ erl -pa ebin
...
1> decimal:add("1.3", "1.07").
{0,237,-2}
2> decimal:format({0,237,-2}).
"2.37"
3> decimal:format(decimal:subtract("1.3", "1.07")).
"0.23"
4> decimal:format(decimal:sqrt("10")).
"3.16227766"
5> decimal:format(decimal:sqrt("10", [{precision, 3}])).
"3.16"
The "decimal" module defines the complete public interface.
There are EUnit tests in the "decimal", "decimal_conv", and "decimal_rounding" modules.
The design of this library is based on the "General Decimal Arithmetic"
specification (http://speleotrove.com/decimal/decarith.html).
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