bc: Numbers
2.1 Numbers
===========
The most basic element in 'bc' is the number. Numbers are arbitrary
precision numbers. This precision is both in the integer part and the
fractional part. All numbers are represented internally in decimal and
all computation is done in decimal. (This version truncates results
from divide and multiply operations.) There are two attributes of
numbers, the length and the scale. The length is the total number of
digits used by 'bc' to represent a number and the scale is the total
number of decimal digits after the decimal point. For example, .000001
has a length of 6 and scale of 6, while 1935.000 has a length of 7 and a
scale of 3.