![]() ![]() Two guesses for x are recovered from memory. GSB B runs a Bisection solver which acts on f(x) = 0 under label 0. GSB A Two entered guesses for x are recovered from the stack and stored in memory. This program offers an alternative way of using solvers to find the roots of equations. GSB D runs the internal SOLVE program which acts on f(x) = 0 under label E.Īpple Numbers and Microsoft Excel versions of the three programmed solvers are included in the download.īisecnewtP3 - 4 Solvers with single entry of guesses - J E Patterson BisecnewtP3 - Download Initial guesses can also be recovered using RCL 1 and RCL 2. With the additional choice of the built-in solver in the HP-15C Simulator, solutions to most root finding problems can be found. The four solvers in this program have their own particular strengths. GSB C runs a Newton-Raphson solver which acts on f(x) = 0 under label E.Īpple Numbers and Microsoft Excel versions of these solvers are included in the download.īisecnewtP2 - 4 Solvers - J E Patterson BisecnewtP2 - Download GSB B runs a Secant solver which acts on f(x) = 0 under label E. GSB A runs a Bisection solver which acts on f(x) = 0 under label E. This program is suitable for some calculators which don't include the HP Solver. With the additional choice of the built-in solver in the HP-15C Simulator solutions to most root finding problems can be found. The three solvers in this program have their own particular strengths. ![]() I have combined the BisectionP, SecantP and Newton-Raphson routines into one program. The bike speed in km/h is returnedīisecnewtP - 3 Solvers - J E Patterson BisecnewtP - Download R/S returns Gain-Ratio for a 170 mm crank arm This program calculates the power in watts required for a given bike speed.Įnter wheel diameter in inches or mm - the program works out if the units are inches or mm from the magnitude. The maximum speed at 42 volts is displayed. The maximum speed at 36 volts is displayed. Enter wheel size in inches or mm - the program works out if the units are inches or mm from the magnitude. In many cases I have included information about how the programs actually work.įor my solvers I have included spreadsheets as part of the download.īike1 - 4 Programs - J E Patterson Bike1 - 4 Programs - DownloadĮbikeMax - Ebike maximum speed from motor rpm - J E PattersonĮnter motor rpm. My only defence is that these programs really do fit in my shirt pocket with ease, using my DM15 calculator from Tools such as Mathematica, Maple, Matlab and programs in languages such as Python are popular.Įntering a formula in a web browser toolbar will lead to sites which can solve equations online. Graphing calculators are inexpensive and useful. There are of course more modern ways to solve all these problems, including spreadsheets such as Excel and Numbers. Normally documentation is created with the Simulator editor and a final edit would be done there. The line numbering will be fixed once the Simulator saves the composite file.ĭocumentation can be combined in a similar way, mostly by pasting lines beginning with #D: and adding new headings. Use the references in the documentation to find the original programs.Ĭollections can be created using a simple text editor by cutting and pasting smaller programs into one file. Themes include Maths, Cycling, Spectroscopy and Physics. In each case, calling the appropriate label will run the desired program. The following programs and program compilations have been prepared using Torsten Manz'sīike1, BisecnewtP, Composite, Maths1, Maths2, Physics1 and ToolkitP are collections of smaller programs.
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