18 Ge t ti n g  St ar t e d
Uc
Cash flow
Initial cash flow. Stores contents of displayed X-
register in R
0
, initializes n to zero, sets N
0
 to 1. Used 
at the beginning of a discounted cash flow problem 
(pages 45, 73).
Ud
Cash flow
Cash flow j. Stores the contents of X-register in R1, 
increments n by 1, and sets N
1
 to 1. Used for all 
cash flows except the initial cash flow in a 
discounted cash flow problem (pages 45, 73).
T SL
Depreciation
Calculates depreciation using straight-line method 
(page 84).
T PRICE
Bond price
Calculates bond price, given desired yield to 
maturity (page 82).
T YTM
Bond yield
Calculates yield to maturity, given bond price 
(page 83).
Ue
Future value
Stores the number of times (from 1 to 99) each cash 
flow occurs as Nj. Assumes 1 unless otherwise 
specified (page 75).
T SOYD
Depreciation
Calculates depreciation using the sum-of-the-years-
digits method (page 84).
Table 1-3 Keys and Functions
Key(s) Description and Page Number in the User’s Guide