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config BR2_PACKAGE_BC
bool "bc"
help
'bc' is an arbitrary precision numeric processing language
Its syntax is similar to C, but differs in many substantial
areas. It supports interactive execution of statements. 'Bc'
is a utility included in the POSIX P1003.2/D11 draft standard.
This version does not use the historical method of having bc
be a compiler for the dc calculator (the POSIX document
doesn't specify how bc must be implemented).
This version has a single executable that both compiles the
language and runs the resulting 'byte code.' The byte code is
not the dc language.
http://www.gnu.org/software/bc