So I'm not sure if I'm right here but I can try:
So we are having a statistics class at uni. The question is:
$x_{1}= 5$, $x_{2}= 3$, $x_{3}= 7$
$y_{1}= 6$, $y_{2}= 4$, $y_{3}= 12$
Calculate following:
$\sum_{i=2}^{3}(x_{i}+y_{i}) =$
I know it's actually quit trivial to calculate this by hand but I would really like to know how I can calculate such stuff using wxmaxima.
Can anybody help me?