TI ba-35 solar Quick Reference Card

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BA35ENG.DOC   BA-35 Solar Quick Reference Guide
Pat Hatcher   Revised: 05/08/00 1:13 PM   Printed:
05/08/00 1:13 PM   Page 18 of 38
Annuity Calculations
For annuity calculations, use 
2
 to set the
calculator to financial mode (FIN appears in the
display).
An annuity is a series of equal payments made
at regular time periods with interest calculated
at the end of each period. Ordinary annuities
have end-of-period payments; annuities due
have beginning-of-period payments.
0
 
a
 (Beginning-of-Period)—Sets the
calculator to compute for annuity-due problems
(beginning-of-period payments).
Pressing 
0
 
a
 causes Begin to appear in
the display. The beginning-of-period function is
in effect until you cancel it (by pressing 
0
 
a
again) or leave the financial mode.
§ 
When Begin is in the display, the calculator
solves using beginning-of-period payments.
§ 
When Begin is not in the display, the
calculator solves using end-of-period
payments.
Note: If an annuity problem does not use
beginning-of-period payments, be sure that
Begin is not in the display before you compute
the answer. Having Begin in the display has no
effect on compound interest calculations in
which no payment is involved.