If I have a sequence - lets say an algebraic sequence
and a function - really doesn't matter what function as long as it takes some sort of arguments
sequence : [1,3,5,7,9,...]
function : result = x*7 + x - 3
what I am interested in is the following sequence : [result @ 1, result @ 3, result @ 5,result @ 7,result @ 9, ...]
What would the formula be for the sum of the above values
my bad for the lacking explanation
I'm bad with words so I'll give an example
say we have the following sequence :
ππ=1+(πβ1)*2
thus ππ=2*π-1
and the following function :
Xπ = ππ^2 + 12 * ππ + 7
thus Xπ = 4*π^2 + 20*π - 4
how do I get the sum of say the first 10 terms :
sum Xn from n = 1 to n = 10
my bad for the lacking explanation
I'm bad with words so I'll give an example
say we have the following sequence :
ππ=1+(πβ1)*2
thus ππ=2*π-1
and the following function :
Xπ = ππ^2 + 12 * ππ + 7
thus Xπ = 4*π^2 + 20*π - 4
how do I get the sum of say the first 10 terms :
sum Xn from n = 1 to n = 10
+33615 Apologies, I misread your question!
Unfortunately, there is no general rule for arbitrary functions. For some functions you can find an expression for the sum, for others you can't. Do you have some specific functions in mind?
