HP 35s User Manual page 272

Equation Entry:
Key in this equation:

Keys:
(In RPN mode)

P
 4 
4
I
Õ
 NÕ
 I F

4  I
 Õ
 N
 B

 
(hold)
Remarks:
The TVM equation requires that I must be non–zero to avoid a    error.
If you're solving for I and aren't sure of its current value, press
before you begin the SOLVE calculation (
17-2
Miscellaneous Programs and Equations
Display:
  
or current equation
 _



 



_

_



_

_

_



I
Description:
Selects Equation
mode.
Starts entering
equation.
Terminates the
equation.
Checksum and length.
I
).