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Source code changes of the file "FAQ" between
bc-1.07.tar.gz and bc-1.07.1.tar.gz

About: bc is an arbitrary precision numeric processing language.

FAQ  (bc-1.07):FAQ  (bc-1.07.1)
skipping to change at line 27 skipping to change at line 27
2) The code "ibase=16; obase=10; FF" outputs FF, not 255. Isn't this 2) The code "ibase=16; obase=10; FF" outputs FF, not 255. Isn't this
a bug? a bug?
No. ibase changed the input base at that point. The 10 is then in No. ibase changed the input base at that point. The 10 is then in
base 16 and thus is the value 16. Therefore, both ibase and obase base 16 and thus is the value 16. Therefore, both ibase and obase
are 16 (decimal). And FF (base 16) on input is printed as FF (base 16) are 16 (decimal). And FF (base 16) on input is printed as FF (base 16)
on output. So how can one get 255? First, single digit numbers are on output. So how can one get 255? First, single digit numbers are
not converted using ibase. So A is always 10 (decimal). The following not converted using ibase. So A is always 10 (decimal). The following
code will always work. "ibase=F+1; obase=A; FF" and that always prints code will always work. "ibase=F+1; obase=A; FF" and that always prints
255. 255.
3) Why is the scale variable ignored on multiply?
That is the way POSIX specifics multiply. Reread the documentation for
the multiply operation and see that multiply uses the scales of the
numbers multiplied to determine the scale of the result.
4) bc's mod command is not working when I run with "bc -l".
bc's mod (%) command works like integer remainder when scale is 0.
The -l flag sets scale to 20 and that chanes how a % b is computed.
Read the man page for exact details.
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