num2str usage from MATLAB 5.6 to MATLAB 2014b

Here is the issue I am having:

I used this code in an earlier version of MATLAB (5.6) and it worked just fine. I have recently installed MATLAB 2014b, and it's showing syntax error on num2str... Below is my code:

Bal = 13123.36;% Balance as of December 13, 2016
n  = 70;% number of months
pay = 200 % If You chose to pay this amount in dollars each month on the loan. 
out1 = ['Based on a $200 monthly payment and 4.25% interesst'];
out2 = ['Daily rate is .011645% for 30 days, Starting balsnce was $13,123.36 on Dec 13,2016'];
disp(out1);
disp(out2);
for i = 1:n 
   xint = .0001164*30*Bal;
   Prnpay = pay - xint;
   Bal = Bal - pay +.0001164*30*Bal;
   out =['number ='num2str(i),' Interest ='num2str(xint),' Principle paid ='num2str(Prnpay),' Balance ='num2str(Bal)];
  disp(out);
end

Any help would be greatly appreciated! Again, this code works perfectly in MATLAB 5.6 on my old XP VM -- when using the same code in MATLAB 2014b, it complains/underlines each num2str in red - indicating syntax issue of some sort.

--Skywolfe

Answer 1

[Image Analyst]

Use fprintf():

Bal = 13123.36;% Balance as of December 13, 2016
n  = 70;% number of months
pay = 200 % If You chose to pay this amount in dollars each month on the loan.
out1 = ['Based on a $200 monthly payment and 4.25% interesst'];
out2 = ['Daily rate is .011645% for 30 days, Starting balsnce was $13,123.36 on Dec 13,2016'];
disp(out1);
disp(out2);
for k = 1:n
	xint = .0001164*30*Bal;
	Prnpay = pay - xint;
	Bal = Bal - pay +.0001164*30*Bal;
	fprintf('number = %d, Interest = %.2f, Principle paid = %.2f, Balance = %.2f\n',...
		k, xint,Prnpay,Bal);
end

Answer 2

[Fangjun Jiang]

Not sure what happened, but all you need to do is to insert a whitespace or comma in front of all the num2str() calls.

out =['number =',num2str(i),' Interest =',num2str(xint),' Principle paid =',num2str(Prnpay),' Balance =',num2str(Bal)];