Round up numbers in Matlab, leaving given numbers of digits after dot

The easiest way is to try to
num = num*10;
num = round(num);
num = num / 10;
kind of thing...

Other way is:
the vpa function.

Install the GUI in R for Ubuntu

First,

sudo apt-get install r-base

Then, type sudo R in command line to invoke R. Type in

install.packages('Rcmdr')

then

q()

Then use R to invoke it,

library(Rcmdr).