N	10000							
c	0.07							
ytm	0.08							
T	5	years						
								
ymt**	0.09							
	t	1	2	3	4	5		
	CF	700	700	700	700	10700		
	dCF	648.1481481	600.1371742	555.6825687	514.520897	7282.240208		
	P	9600.728996						suma annuities
	duration:							2794.897026
		648.1481481	1200.274348	1667.047706	2058.083588	36411.20104		6805.83197
		41984.75483						9600.728996
	D (years)	4.373079883	years					
	Modif.duration	4.049148039	%					
	$ duration	388.7477299						
								
	aprox. P							
	P*	9211.981266						
								
	t	1	2	3	4	5		
	CF	700	700	700	700	10700		
	dCF	642.2018349	589.1759953	540.528436	495.8976477	6954.265833		
	P	9222.069747						
								
								
								
Zero bond								
N	150000							
T	6							
ytm	0.06							
								
								
P_0	105744.0811							
								
								
N	130000							
P_m	98000							
T	4							
								
ytm:	0.073196677