Survey Programs For Hp 35s
An ingenious solution
Let's face it, the HP35, 45, et. al., pocket calculators, revolutionary when first introduced in 1972, have long since outlived their indispensability. Still, those of us who bought one at the time like to get them out every once in a while.If you're like me, your original battery has leaked and you've lost your plug-in charger. I had a calculator I couldn't use. I found a vendor selling batteries (and bought one), but when the batteries run down, what do I do?That's when I stumbled on this USB charger assembly. Truly an ingenious and simple solution. Whoever designed it has married a standard USB 1.0 A connector to the special-purpose battery connector for the HPxx calculators. It uses the power connections (and only the power connections; the computer does not recognize the calculator as an attached device) to provide power to the HPxx (and to charge its battery, if you have one).My only reservation is the voltage. Standard USB power specs center around a nominal 5.0VDC. The calculator is specified at 3.75 volts. I don't know if the calculator can withstand 5.0VDC at all/for an extended period/??? Nor can I find any documentation about supply voltage tolerances for the HP-45. There is no documentation with the cable to indicate what (if any) limitations this places on its use. Since there is no documentation, it also can't be determined if the developer put some sort of dropping resistance in the path to get the target voltage to 3.75. This would be unlikely, as it would not only waste USB power in the form of heat, but it would require knowledge of the specific load of each HP calculator.
I was wondering if anyone has created or used Surveying programs for the HP 35s? I want to program mine for calculating vertical curves, COGO and other Surveying calcs but do not know how to program them in properly. Does anyone know where to find the best info that show me how to input the programs? Sent from my XT1093 using Tapatalk. A, for the HP 35s calculator. The perfect calculator for taking the Land Surveyors Exam. The following are the DVD video clips contained as a part of the software that makes up the LSS Surveying Miracle Software, version 2.7.A, for the HP 35s calculator. Video #1: Introduction. Video #2: Warnings about losing programs. The American Surveyor Magazine Online - A Premier Resource for Land Surveying, Measurement & Positioning Technology, Two Nifty Programs That Will Make Your HP 35S Calculator 'Cry And Sing!'
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Recently purchased this guy to start getting familiar with it for the Land Survey Intern test. I bought it from calculator source with the programming book that has information on how to set it up for curves and other fun surveying functions I cannot remember off hand.
What are some tips to mastering this calculator? Are there any freely available guides to help with understanding reverse polish notation and this calculator?
I imagine my adoption of this calculator is like when surveyors first got EDMs: I check values in my ti83 much like surveyors probably pulled chain to check total station distances when they first got them lol.
Any responses are greatly appreciated!