Sorry, I clicked sent before completing the mail! On Thu, Jun 18, 2009 at 9:07 AM, Kumar Appaiah <[email protected]> wrote: > > On Thu, Jun 18, 2009 at 9:03 AM, Mayank wrote: > > I'm sorry if this question has been asked before but I couldn't find > > any appropriate answer elsewhere and hence this post. Today while doing some > > calculation using bc I found a very peculiar thing. I was performing an > > operation -2 % -3 and the software reported the answer as -2. Now -2 > -3 > > and if I remember correctly then in divison operation the remainder is less > > than the divisor. So how come in this case the answer is not coming > > properly. Is it a software flaw or there is some mistake in my understanding > > of the division operation ? > > From the bc man page: > > "expr % expr > The result of the expression is the "remainder" and it > is computed in the following way. To compute a%b, first a/b is > computed to scale digits. That result is used to compute a-(a/b)*b to > the scale of the maximum of scale+scale(b) and scale(a). If scale is > set to zero and both expressions are integers this expression is the > integer remainder function." > Now, the default "scale" in bc is 0, which takes all fractions to the integer preceding them. e.g.
-- Kumar -- http://mm.glug-bom.org/mailman/listinfo/linuxers
