@Primitiva dunha función $f(x)$
system:sage


<CENTER>
<HR>
<H3>Primitiva dunha función $f(x)$</H3>
</CENTER>

{{{id=0|
#auto
%hide
var('x')
@interact
def example(f=x^2/(2*x^2+3)^2):
    P = integrate(f, x)
    html('<h1>Unha primitiva de $f(x) = %s$ é</h1>'%latex(f))
    show(P)
///
<html><!--notruncate--><div padding=6 id='div-interact-0'> <table width=800px height=20px bgcolor='#c5c5c5'
                 cellpadding=15><tr><td bgcolor='#f9f9f9' valign=top align=left><table><tr><td align=right><font color="black">f&nbsp;</font></td><td><input type='text' value="x^2/(2*x^2 + 3)^2" size=80 onchange='interact(0, "_interact_.update(0, \"f\", 1, _interact_.standard_b64decode(\""+encode64(this.value)+"\"), globals());_interact_.recompute(0)")'></input></td></tr>
</table><div id='cell-interact-0'><?__SAGE__START>
        <table border=0 bgcolor='#white' width=100% height=100%>
        <tr><td bgcolor=white align=left valign=top><pre><?__SAGE__TEXT></pre></td></tr>
        <tr><td  align=left valign=top><?__SAGE__HTML></td></tr>
        </table><?__SAGE__END></div></td>
                 </tr></table></div>
                 </html>
}}}

{{{id=2|

///
}}}