Edited on 12.09.2022
Problem in your script is that you are not storing your results, values are updated in your "for loop"
%This script is to solve for the investment of $50
%with an interest of 1% or 0.01 the equation uses the
% A * (1 + r) .^ n equation of interest with investment
%Script wrote by Doyouknow
format bank
monthlyInvestment = 50; %monthlyInvestment = 50;
interestRate = 0.01; %interestRate = 0.01;
j = 1;
monthEndBalance =zeros(1,12);
prevmonthEndBalance = 0;
disp('Month Month End Balance')
figure;
month = 1:12;
for i = 1:length(month)
monthEndBalance(i) = prevmonthEndBalance + (monthlyInvestment * (1 + interestRate) .^ i);
prevmonthEndBalance = monthEndBalance(i);
fprintf([num2str(month(i)) '-' num2str(monthEndBalance(month(i))) '\n'])
end
plot (month,monthEndBalance);hold on
title('Plot of Investment') %Testing out to see if i can plot
xlabel('Month (month)') %using the given data so far not
ylabel('Year (monthEndBalance)')
xticks (1:12) %sets the x values to be 1 - 12 to represent the graph
