This video shows how to perform the sum of a sequence using your TI-84 calculator.. The sum( and seq( functions can be combined in order to calculate the summation of a range of consecutive terms in a sequence. The necessary syntax is given below: sum(seq(expression,variable,begin,end[,increment])) The expression is evaluated for each value of the variable from begin to end, and returns the sum of the results.
To evaluate summation notation start by pressing the [math] key and then scroll to "summation" and press [enter]. Or press [math] and then press [0]. This will bring a textbook like display of a sigma template on your TI-84 Plus. From there you will enter the summation notation template.. Using the TI-84 Graphing calculator, I show you how to find the sum of an arithmetic sequence.