Interesting HP27S Solver formulas
05-04-2019, 09:47 AM
Post: #1
 zswobbie12 Junior Member Posts: 6 Joined: Apr 2019
Interesting HP27S Solver formulas
Hi all, I'm looking for any interesting solver formulas not really maths stuff.
Games, if any (I somehow doubt).

Sorry if thats such a broad request, but I cannot find anything out there.

Regards,
Robin
05-04-2019, 11:01 AM
Post: #2
 rprosperi Senior Member Posts: 3,815 Joined: Dec 2013
RE: Interesting HP27S Solver formulas
Here's an excellent 27S article list compiled by jebem:

Likely not too many games, but plenty of topics to explore.

--Bob Prosperi
05-04-2019, 11:16 AM
Post: #3
 zswobbie12 Junior Member Posts: 6 Joined: Apr 2019
RE: Interesting HP27S Solver formulas
Thanks for that list, most interesting.
I would love to get hold of that HP27S Technical Applications book.

Regards,
Robin
05-04-2019, 11:42 AM
Post: #4
 striegel Member Posts: 205 Joined: May 2015
Step-by-Step Solutions for Your HP-27S or HP-19B Calculator
(05-04-2019 11:16 AM)zswobbie12 Wrote:  ...I would love to get hold of that HP27S Technical Applications book.
There is a scanned copy of it in the HP Museum Document Set.

It is a PDF with double-page, side-by-side scans but appears to be fully text searchable.

Alan
05-04-2019, 01:07 PM
Post: #5
 striegel Member Posts: 205 Joined: May 2015
Edition 2 November 1988
Contents
5 How To Use This Book
7 Display Formats and Numeric Input
8 Entering Equations
10 Using LET and GET
10 Function Descriptions
11 Intermediate Variables
12 Reducing Keystrokes With LET
14 How LET and GET Change an Equation
14 Using New and Old Values
16 When Not to Use LET and GET
19 Solving for More Than One Variable at a Time
21 Evaluation Order
23 Forcing Iteration
24 More on Using the Σ Function
24 Definite and Indefinite Loops
25 Simulating an Indefinite Loop
28 Using Trigonometric Functions
29 In Conclusion
30 Reference
2 31 Technical Application Equations
32 Greatest Common Divisor and Least Common Multiple
33 The GCD and LCM Equation
33 Example Problems
36 Numerical Integration
37 The Integration Equation
38 Example Problems
42 Numerical Differentiation
43 Choosing h
44 The Differentiation Equation
45 Example Problems
47 Minimum/Maximum Problems
52 Factors and Primes
52 The Factors and Primes Equation
54 Example Problems
56 Vector Operations
57 The Vector Operations Equation
58 Example Problems
64 Complex Number Operations
64 The Complex Operations Equation
69 Example Problems
74 Triangle Solutions
74 Triangle Formulas
76 The Triangle Solutions Equation
78 Example Problems
84 3x3 Matrix Operations
84 Defining Equations
85 Solving a System of Linear Equations
86 The 3x3 Matrix Operation Equation
88 Example Problems
94 Coordinate Transformations
95 Coordinate Transformation Formulas
95 The Coordinate Transformation Equation
98 Example Problems
05-04-2019, 10:26 PM
Post: #6
 Dave Britten Senior Member Posts: 1,374 Joined: Dec 2013
RE: Interesting HP27S Solver formulas
There was a scan of Popular Electronics posted a few months ago, which has Battle The Diver Bomber for the 25/25C, and I'll bet it would be simple enough that it could be implemented on the 27S (and probably even the 17BII; I wonder if the "bomber" is also a B-2):