Binary package “libmath-bigint-perl” in ubuntu noble

arbitrary size integer/floating/rational number math package

 Math::BigInt, Math::BigFloat, and Math::BigRat are modules for arbitrary
 precision integers, floating point numbers, and rational numbers.
 .
 All operators are overloaded; operations with overloaded operators preserve
 the arguments.
 .
 Math::BigInt, Math::BigFloat, and Math::BigRat are also in perl core, this
 package provides newer versions separately.