TI-83 Plus Lists 313
sum(, prod(
sum( (summation) returns the sum of the elements in list. start and end are
optional; they specify a range of elements. list elements can be real or
complex numbers.
prod( returns the product of all elements of list. start and end elements are
optional; they specify a range of list elements. list elements can be real
or complex numbers.
sum(list[,start,end]) prod(list[,start,end])
Sums and Products of Numeric Sequences
You can combine sum( or prod( with seq( to obtain:
upper upper
G expression(x) ∏ expression(x)
x=lower x=lower