Using a loop to find out how long and how many terms

Question

Steven 2012-4-1

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/34148-using-a-loop-to-find-out-how-long-and-how-many-terms

评论： Tyler Kelley 2018-4-6

So I have a problem that asks me to give a loop to see how long it takes to accumulate $1,000,000 in a bank account if you deposit $10,000 initially and $10,000 at the end of each year. Also the account pays 6% interest (0.06) each year.

Note:(The answer is 33 years, after 33 years the amount will be $1,041,800)

I've tried a while loop and can't arrive at that.

Please I need help!

Here is code I have so far:

money=10000; k=0; max=30;

while k > max

    k=k+1;
    money=money-(0.06*money);
    if money > 1000000
        break;
    end

end

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Steven 2012-4-1

money=10000; k=0; max=30;

while k > max

k=k+1;

money=money-(0.06*money);

if money > 1000000

break;

end

I'm not getting any output for this. I don't know what to do.

Tyler Kelley 2018-4-6

在 MATLAB Online 中打开

Balance = 10000; InterestRate = 1.06; Year = 0;

while Balance < 1000000

    Balance = Balance*InterestRate + 10000;
    Year = Year + 1;

end

disp(Year)

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Answer 1

bym 2012-4-1

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/34148-using-a-loop-to-find-out-how-long-and-how-many-terms#answer_42865

在 MATLAB Online 中打开

Check your math

clc;clear
dep = 10000;
account = 10000;
year = 0;
while account < 1000000
    year = year+1;
    account = account*1.06 + dep;
end
sprintf('after %d years, the total is %7.0f dollars',year,account)