| General > General Technical Chat |
| Calculator recommendation? |
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| MikeK:
I'm looking to get [yet another] calculator. But I want one that can handle equations. As an example, I recently was calculating a lot of inductor values from measured frequency and known capacitance in an LC tank circuit. So I would have wanted to enter the formula, and then just enter F and C to arrive at L. And be able to do that multiple times by just entering F and C. I don't need some really expensive unit, or graphing. |
| Refrigerator:
I've been using my TI-82 for stuff like this, but you would need to code a TI-BASIC program to calculate stuff for you. For example i've written programs to convert HEX to BIN, DEC to HEX and so on. I think i might have even had an LC tank calculator set up back in highschool during physics class. Basically if there were any repetitive calculations i'd just write a program to do it. Not sure if there are any calculators that let you plug just an equation in. |
| MikeK:
Well, maybe not plug an equation in, but to do something like this: 1. I enter a frequency value. Calculator does these steps: 2. Multiply by 2 3. Multiply by PI 4. Take the inverse 5. Square it 6. Divide by 10-12 (which is my capacitor value of 1000pF) |
| MikeK:
TI-82 might be good, I'll check it out, though. |
| Someone:
Most of the graphing calculators will have a numerical solver, they're cheap second hand and just ignore the other bits you don't want? If you really really want no graphing for some reason there are a few intermediate calculators, on the market right now is the TI-36X Pro.... But it only has a limited set of variables, no physical constants, and needs more button presses to do the solving. So a modern graphing calculator doesn't look so bad. --- Quote from: MikeK on March 06, 2021, 09:06:31 pm --- --- Quote from: Refrigerator on March 06, 2021, 08:59:06 pm --- --- Quote from: MikeK on March 06, 2021, 06:29:09 pm ---I don't need some really expensive unit, or graphing. --- End quote --- I've been using my TI-82 for stuff like this, but you would need to code a TI-BASIC program to calculate stuff for you. For example i've written programs to convert HEX to BIN, DEC to HEX and so on. I think i might have even had an LC tank calculator set up back in highschool during physics class. Basically if there were any repetitive calculations i'd just write a program to do it. Not sure if there are any calculators that let you plug just an equation in. --- End quote --- TI-82 might be good, I'll check it out, though. --- End quote --- Thats one of their few graphing calculators that doesn't have a numeric solver, possibly the worst combination of all features/choices for what you stated. |
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