Can you take constant out of summations

Active Oldest Votes. Graham Kemp Graham Kemp k 6 6 gold badges 45 45 silver badges bronze badges. Deosn't it change the result if I do so? Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Upcoming Events. Featured on Meta. Now live: A fully responsive profile. You can, of course, derive other formulas from these for different starting points if you need to.

Here is a quick example on how to use these properties to quickly evaluate a sum that would not be easy to do by hand. The first thing that we need to do is square out the stuff being summed and then break up the summation using the properties as follows,. Notes Quick Nav Download. The summation sign This appears as the symbol, S , which is the Greek upper case letter, S. The summation sign, S , instructs us to sum the elements of a sequence.

A typical element of the sequence which is being summed appears to the right of the summation sign. The variable of summation, i. The index is often represented by i. Other common possibilities for representation of the index are j and t.