Various newbie questions



Hi all, 

I have several questions about Maxima CVS version:
(compiled with gcl 2.6.5 with ansi rules under Debian
GNU/Linux 3.1 (Sarge)) 

For instance: 

(%i6) sin(%pi);
(%o6)                                  0
(%i7) sin(%pi),numer;
(%o7)                        1.224606353822377E-16

Why the result in %o7??. The number in %o7 is very small, but 
should must be zero??

Another question: 

In the stable version i can use de command history, but in the
cvs version no, why??? Is neccesary some option in the compilation
moment to support this setting?. 

The last question: 

In the CVS version of Maxima i have this problem: 

(%i1) Sin(%pi);
(%o1)                              Sin(%pi)
(%i2) sin(%pi);
(%o2)                                  0

Only in the form of (%i2) the Sin function work fine. I don't know why 
this behavior. 


Thanks, 

Juan Pablo Romero Bernal "jpromerobx"

------
"La política es por el momento, una ecuación es para la eternidad". Albert Einstein



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