HP 12c Platinum Owner's Handbook

188 Appendix : Formulas Used
for f(DT
1
)
if dd
1
= 31 then z = 30
if dd
1
≠ 31 then z = dd
1
for f(DT
2
)
if dd
2
= 31 and dd
1
= 30 or 31 then z = 30
if dd
2
= 31 and dd
1
< 30 then z = dd
2
if dd
2
< 31 then z = dd
2
Bonds
Reference:
Spence, Graudenz, and Lynch, Standard Securities Calculation Methods, Securi-
ties Industry Association, New York, 1973.
For semiannual coupon with 6 months or less to maturity:
PRICE =
For semiannual coupon with more than 6 months to maturity:
DIM = days between issue date and maturity date.
DSM = days between settlement date and maturity date.
DCS = days between beginning of current coupon period
and settlement date.
E = number of days in coupon period where settlement
occurs.
DSC = E – DCS = days from settlement date to next 6-
month coupon date.
N = number of semiannual coupons payable between
settlement date and maturity date.
CPN = annual coupon rate (as a percentage).
YIELD = annual yield (as a percentage).
PRICE = dollar price per $100 par value.
RDV = redemption value.
100 RDV
CPN
2
------------+


1
00
DSM
E
-------------
YIELD
2
------------------×


+
--
--------------------------------------------------------
DCS
E
------------
CP
N
2
----------
--
×–

HP 12c Platinum Specifications

General

Digits	10 digits
Battery type	CR2032
Type	Financial
Form factor	Pocket

Weight and Dimensions

Weight	110 g
Dimensions (WxDxH)	79 x 129 x 15 mm