Returns the NUMERIC DIGITS setting that the built-in functions use internally, which is 9 digits, when running in 32-bit addressing mode, and 18 digits, when running in a 64-bit addressing mode.

See also method name.

say .RexxInfo~internalDigits    -- 9  /* 32-bit addressing mode */
say .RexxInfo~internalDigits    -- 18 /* 64-bit addressing mode */