User Manual
Table Of Contents
- Important Information
- Overview of Calculator Operations
- Turning On the Calculator
- Turning Off the Calculator
- Selecting 2nd Functions
- Reading the Display
- Setting Calculator Formats
- Resetting the Calculator
- Clearing Calculator Entries and Memories
- Correcting Entry Errors
- Math Operations
- Memory Operations
- Calculations Using Constants
- Last Answer Feature
- Using Worksheets: Tools for Financial Solutions
- Time-Value-of-Money and Amortization Worksheets
- TVM and Amortization Worksheet Variables
- Using the TVM and Amortization Variables
- Resetting the TVM and Amortization Worksheet Variables
- Clearing the Unused Variable
- Entering Positive and Negative Values for Outflows and Inflows
- Entering Values for I/Y, P/Y, and C/Y
- Specifying Payments Due With Annuities
- Updating P1 and P2
- Different Values for BAL and FV
- Entering, Recalling, and Computing TVM Values
- Using [xP/Y] to Calculate a Value for N
- Entering Cash Inflows and Outflows
- Generating an Amortization Schedule
- Example: Computing Basic Loan Interest
- Examples: Computing Basic Loan Payments
- Examples: Computing Value in Savings
- Example: Computing Present Value in Annuities
- Example: Computing Perpetual Annuities
- Example: Computing Present Value of Variable Cash Flows
- Example: Computing Present Value of a Lease With Residual Value
- Example: Computing Other Monthly Payments
- Example: Saving With Monthly Deposits
- Example: Computing Amount to Borrow and Down Payment
- Example: Computing Regular Deposits for a Specified Future Amount
- Example: Computing Payments and Generating an Amortization Schedule
- Example: Computing Payment, Interest, and Loan Balance After a Specified Payment
- TVM and Amortization Worksheet Variables
- Cash Flow Worksheet
- Bond Worksheet
- Depreciation Worksheet
- Statistics Worksheet
- Other Worksheets
- APPENDIX - Reference Information
![](/manual/texas-instruments/iibapro-tbl-1l1/user-manual-english/images/img-92.png)
88 APPENDIX - Reference Information
Yield is found through an iterative search process using the “Price with
more than one coupon period to redemption” formula.
Accrued interest for securities with standard coupons or interest at
maturity:
where:
AI =accrued interest
PA R =par value (principal amount to be paid at maturity)
Depreciation
RDV = CST N SAL N accumulated depreciation
Values for
DEP, RDV, CST, and SAL are rounded to the number of
decimals you choose to be displayed.
In the following formulas,
FSTYR = (13 N MO1) P 12.
Straight-line depreciation
First year:
Last year or more:
DEP = RDV
Sum-of-the-years’-digits depreciation
First year:
Last year or more:
DEP = RDV
AI PAR
R
M
----
A
E
---
=
Modified Duration
Duration
1
Y
M
----
+
------- --- ------- ----
=
Dur 1
Y
M
----
+
Dsr
Rv
100 R
M
------------------
+
1
Dsr Y
EM
----------------- -
+
2
--------------------------------- -------
EMPri
--------------------- -----------------------------------------
=
Dur 1
Y
M
-----
+
Rv N 1–
Dsc
E
---------
+
1
Y
M
----
+
N
Dsc
E
---------
+
------------------------------------------------
100
R
M
----
k 1–
Dsc
E
---------
+
1
Y
M
----
+
k
Dsc
E
---------
+
------------------------------------------------------------
k 1=
N
+
MPri
----------------------------------------------------------------------------------------------------------------------------------------
=
CST SAL–
LIF
---------------------------
CST SAL–
LIF
---------------------------
FSTYR
LIF 2 YR– FSTYR–+ CST SAL–
LIF LIF 1 + 2
-------------------------------------------------------------------------------------------------- -
LIF CST SAL–
LIF LIF 1 +2
------------------------------------------------------------
FSTYR