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-BCMATH FAQ: 
-
-1) Why BCMATH?
-
-The math routines of GNU bc become more generally useful in a
-library form.  By separating the BCMATH library from GNU bc,
-GNU bc can be under the GPL and BCMATH can be under the LGPL.
-
-2) Why BCMATH when GMP exists?
-
-GMP has "integers" (no digits after a decimal), "rational numbers"
-(stored as 2 integers) and "floats".  None of these will correctly
-represent a POSIX BC number.  Floats are the closest, but will not
-behave correctly for many computations.  For example, BC numbers have
-a "scale" that represent the number of digits to represent after the
-decimal point.  The multiplying two of these numbers requires one to
-calculate an exact number of digits after the decimal point regardless
-of the number of digits in the integer part.  GMP floats have a
-"fixed, but arbitrary" mantissa and so multiplying two floats will end
-up dropping digits BC must calculate.
-