a<-5+3 a
## [1] 8
Ecución \(\sum_{n=1}^{10}n\)
\[\sum_{n=1}^{10}n\]
x<-c(1,2,3,4,5) y<-c(2,4,5,8,10) plot(x,y)
\[ \frac{-b\pm\sqrt{b^2-4ac}}{2a} \]