I am not a mathematician, so I apologize if this question will sound stupid. I am wondering is there some sort of notation which will resemble the one of sigma notation, but with multiplication instead of addition?
For example, the following expression: $2^1+2^2+2^3+2^4+2^5$ could be written as: $\sum_{i = 1} ^ 5 2^i$
But what about the following expression: $2^1*2^2*2^3*2^4*2^5$ ?
Is there some notation like sum sigma that could enable me to write this last expression a bit shorter?
Thank you very much.
$\prod$
$$\prod_{k=1}^5 2^k$$ $\endgroup$ – Daniel Fischer♦ Aug 7 '14 at 22:19