Very cool. Unfortunately, I think the price point is a bit too high (at least for me).
Tydlig – Calculator Reimagined for iPad and iPhone
81–90 of 151 posts
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#82No RPN. Neckbeard status confirmed. Calculators are still an unsolved problem for me on glass devices to the point I still religiously carry around an HP50G even though its 6x the size of my phone. Also from some bad experiences, it appears that some "app" calculators are also seriously badly implemented. Even basic trig ops can return stupid values at extremes which makes them untrustworthy. Plus none are reasonably…
I use an HP-41CX app for my iPhone. I don't use 90% of its capabilities and it doesn't have the keyboard feel (obviously) of the original but it's pretty good for my purposes. I've used RPN since the late seventies when I got an HP-55 my sophomore year in college so I'm pretty wedded to it.
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#83Earlier quoted context omitted.
> It does return the correct value for sin(π) though (you gotta call __sinpi(x / M_PI) if you don't want to return -8.74e-8 or some ridiculous value). This is ridiculous. Your calculator (most calculators) cannot apply sin to π, because π is not representable is their system (typically base-2 or base-10 floating-point). What you have done here is make sine worse for all values, including the representable value close…
> because π is not representable is their system (typically base-2 or base-10 floating-point). Casio scientific calculators do have an internal representation of π (it's treated differently from the closest possible typed value) and very nuanced representations of numbers in general. As you say, this is where calculator apps almost inevitably fail - representing numbers properly is really crucial to the UX, and float…
Spot on. This is one reason I still use my 50g - it uses decimal internal representation with known precision on every operation.
Casios are a mess. They are actually made my Kinpo which do a shitty job of pretty much everything. The notable exceptions being the FX991MS and Fx5800P which are very very close to my 50g (which was laboriously tested on paper before I trusted it)
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#84Graphing functionality on a phone reminds me of an old TI calculator. I really don't know why recent OSes (be it on PC, smartphone, tablet) always came with such feeble calculators. It's not like TI calculators are difficult to use. Sure if all you want is add/min/mul/div functionality the TI is essentially a traditional calculator, and then behind that you've got all these nifty graphing utilities. It's not like a g…
It's depressing to me that the closest I can get to the TI-92+ I had in college is to emulate a TI-92+ on my computer or Android devices (actually on a tablet it's not too bad). My other options (Octave, Matlab, etc.) are way too heavy for what I want to do and require too much time to learn. They don't have that sort of pickup-and-use feature my old calculators used to have. I think it's the presence of most of the…
Ha I had a TI92 (not plus) a number of years ago. Weighed a ton - you could kill someone with it. Sold it and got an HP48GX after I discovered that you couldn't get the plus module for it in the UK for a reasonable price. Never looked back.
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#85excellent new idea.
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#86Earlier quoted context omitted.
Just a musing: perhaps its considered not as valuable an investment to program since a (the?) primary market is students, and students are probably not allowed to use phones on tests for obvious reasons (internet connectivity, texting questions to each other, overall distraction). However, TI's are state approved or whatever.
It's so sad that kids with iphones aren't allowed to use phones on tests. They're being tested in an archaic context for archaic purposes. Under what circumstances are people going to be working without internet access? School has a lot of catching up to do with the real world. :(
Here's the thing about calculation in particular: Yes, if your ultimate goal is to perform the calculation and nothing more, you'll be able to use a tool for the job in the real world.
However, many times the calculation is just a very small piece of a much larger puzzle. In such situations, being able to perform small computations rapidly in your head makes a qualitative difference that can really give you a competitive advantage.
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#87Earlier quoted context omitted.
Just a musing: perhaps its considered not as valuable an investment to program since a (the?) primary market is students, and students are probably not allowed to use phones on tests for obvious reasons (internet connectivity, texting questions to each other, overall distraction). However, TI's are state approved or whatever.
It's so sad that kids with iphones aren't allowed to use phones on tests. They're being tested in an archaic context for archaic purposes. Under what circumstances are people going to be working without internet access? School has a lot of catching up to do with the real world. :(
Just... Wow. I suppose essays are the same, cut and paste from Wikipaedia?
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#88Just a heads up, the inverse hyperbolic trig functions are arsinh, arcosh, and artanh. That's "ar" and not "arc" which stands for area.
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Re: Tydlig – Calculator Reimagined for iPad and iPhone
#89Graphing functionality on a phone reminds me of an old TI calculator. I really don't know why recent OSes (be it on PC, smartphone, tablet) always came with such feeble calculators. It's not like TI calculators are difficult to use. Sure if all you want is add/min/mul/div functionality the TI is essentially a traditional calculator, and then behind that you've got all these nifty graphing utilities. It's not like a g…
It's depressing to me that the closest I can get to the TI-92+ I had in college is to emulate a TI-92+ on my computer or Android devices (actually on a tablet it's not too bad). My other options (Octave, Matlab, etc.) are way too heavy for what I want to do and require too much time to learn. They don't have that sort of pickup-and-use feature my old calculators used to have. I think it's the presence of most of the…
I miss my TI-92+ as well. It feels like an iPad has enough screen real estate to be able to simulate the same experience, and I was surprised that nobody has done it yet.
Edit: looks like there are some good options for Android that actually emulate TI calculators, and apparently TI has Nspire for the iPad.
Re: Tydlig – Calculator Reimagined for iPad and iPhone
#90No RPN. Neckbeard status confirmed. Calculators are still an unsolved problem for me on glass devices to the point I still religiously carry around an HP50G even though its 6x the size of my phone. Also from some bad experiences, it appears that some "app" calculators are also seriously badly implemented. Even basic trig ops can return stupid values at extremes which makes them untrustworthy. Plus none are reasonably…
I just replaced the batteries in my 48GX. I think in stacks and RPN is a better system for how I think. I have 48GX emulators for my phone and still use them over more modern calculator apps. That being said, I appreciate the design considerations they've applied to this. I wish they'd make an Android version, because I might have been interested in trying this out.
It's funny how, for some things, you tend to be more comfortable with whatever you're used to even if nothing newer is objectively better. I used an HP-55 for years and then an HP-41. The newer HP graphic calculators never did a lot for me and I still use an HP-41 emulator on my iPhone for most of my calculating--though I'll pull out a physical HP calculator is I need to do a lot of calculating.