HP 17bII+ - Manual (Page 248)

248 B: More About Calculations
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
INT’ ＝ BAL x i (INT’ is rounded to the current display setting;
INT’ ＝ 0 for period 0 in Begin mode)
INT ＝ INT’ (with sign of PMT )
PRIN ＝ PMT + INT’
PRIN ＝ PMT + INT’
BAL
new
＝ BAL
old
+ PRIN
∑INT
new
＝ ∑INT
old
+ INT
∑PRIN
new
＝ ∑PRIN
old
+ PRIN
Interest Rate Conversions
Periodic compounding
%
% 1 1 100
100
P
NOM
EFF
P
 
 
+ − Ч    
Ч      
＝
Continuous compounding
%
100 % 1 100
NOM
EFF e
 
− ×  
 
＝
Cash-Flow Calculations
j ＝ the group number of the cash flow.
CF
j
＝ amount of the cash flow for group j.
n
j
＝ #TIMES the cash flow occurs for group j.
k ＝ the group number of the last group of cash flows.
0
1
total number of cash flows prior to group j
( x ( % : ) ( % : ))
j l
l
k
j j j
j
N n
NPV CF CF USPV i n x SPPV i N
≤
=
+
∑
∑
1 ＜j
=
＝
＝
When NPV = 0, the solution for i% is IRR%.