# Compound interest in a for loop

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I need to create a loop to calculate the compound interest of a Roth IRA each year. The function has to input p(principal amount), c(yearly contribution), r(return rate), and n(number of years). It has to output a v vector of values in the account the first day of each year. I have written a loop that should calculate the yearly compound interest through the y=equation, and then add it to the vector v. However this loop only prints out the initial values p. How do I make this create a vector of compount interests. I also have to plot the vector that comes out versus the year, but I have no idea what syntax to use to do that.
v=p;
for N=2:length(n)
y=(v*(1+r).^N+c)
v=v+y(N);
end

Sulaymon Eshkabilov on 12 Jun 2021
Edited: Sulaymon Eshkabilov on 12 Jun 2021
v=p;
for N=2:length(n)
y(N)=(v(N-1)*(1+r).^N+c)
v(N)=v(N-1)+y(N); % specify the index and you will get all the values
end
Petch Anuwutthinawin on 12 Jun 2021
all the code does is print out the input values of p, and not a vector and not the correct calculations