How can i change the result in the annualpayment in the table to a number with 4 decimal, and not in exponentioal form

%Annual Payment for Loans

p = 55000; %in dollars

r = 0.066; %interest rate

n = 1:5; %year

%Formula to be Use

A = (p * ((r*(1+r).^n)./((1+r).^n - 1)));

year = n;

annualpayment = A;

Annual_payment_with_an_interest_rate = table(n',A','VariableNames', {'year (n)','annualpayment(A)'})

Answer 1

[Walter Roberson]

%Annual Payment for Loans
p = 55000; %in dollars
r = 0.066; %interest rate
n = 1:5; %year
%Formula to be Use
A = (p * ((r*(1+r).^n)./((1+r).^n - 1)));
year = n;
annualpayment = A;
Annual_payment_with_an_interest_rate = table(n',A','VariableNames', {'year (n)','annualpayment(A)'});

format shorte
Annual_payment_with_an_interest_rate 

Annual_payment_with_an_interest_rate = 5×2 table
     year (n)     annualpayment(A)
    __________    ________________

    1.0000e+00       5.8630e+04   
    2.0000e+00       3.0251e+04   
    3.0000e+00       2.0805e+04   
    4.0000e+00       1.6091e+04   
    5.0000e+00       1.3271e+04   

format short
Annual_payment_with_an_interest_rate

Annual_payment_with_an_interest_rate = 5×2 table
    year (n)    annualpayment(A)
    ________    ________________

       1             58630      
       2             30251      
       3             20805      
       4             16091      
       5             13271      

format long g
Annual_payment_with_an_interest_rate 

Annual_payment_with_an_interest_rate = 5×2 table
    year (n)    annualpayment(A)
    ________    ________________

       1                   58630
       2         30251.490803485
       3        20804.8550129967
       4        16091.1678968697
       5        13270.6382762213

format bank
Annual_payment_with_an_interest_rate

Annual_payment_with_an_interest_rate = 5×2 table
    year (n)    annualpayment(A)
    ________    ________________

      1.00          58630.00    
      2.00          30251.49    
      3.00          20804.86    
      4.00          16091.17    
      5.00          13270.64    

That is, the "format" command affects how a table is displayed at the command window.

However if you want to display 4 decimal digits at the command line then you will need to change the content of the table variable using round() and use format longg -- but if you do then since 58630 is an exact value with no cents then longg format will not display the cents. To go further than that you need to change the content of the tables in other more obscure ways.

[Shane Jasmine]

Thank you!