"Aritmethical operations on time series"
I'm new to RM and I am still not very familiar with all the operators. I'm looking for an operator that allow to perform simple mathematical operations on two times series variables. For example, from a time series data set I need to divide (or subtract or add) a variable by another variable in the same data set. Is there an operator that can do so? Any hint will be very much appreciated
Thanks in advance