Ruby bundles Bignum and BigDecimal libraries which provide arbitrary-precision math primitives in the standard library. Python similarly provides the 'decimal'

Ruby bundles Bignum and BigDecimal libraries which provide arbitrary-precision math primitives in the standard library. Python similarly provides the 'decimal' module. Most other "dynamic" languages provided at minimum bindings to the GMP library. Basically, you seem to be considering only the fast, C-based math primitives most languages offer by default, and ignoring the more powerful options available to those who need them.