May I ask you (as innocently as possible) why you still want the RPN entry form? My scientific calculator can nest more levels of parentheses that I can keep track of. RE: Engineering calculator recommendations Sparweb (Aerospace) 28 Sep 14 16:40 To an Engineer, the glass is twice as big as it needs to be. Besides, you can't beat the price (it's included from Apple).Īs for "replica apps", the only one that fits that description as well as this topic on my iPhone is 'SlipStick', a virtual slide rule which emulates a Picket Log-Log rule not all that different than the one I bought back in high school, some 50 years ago.Īs for my iPad, in addition to the free Apple calculator, I have something called 'PCalc Lite' which is a full-blown scientific calculator that also includes a library of mathematical and astronomical constants (including the answer to the 'Ultimate Question') and conversion utilities covering Lengths, Speeds, Volumes and Weights (note that additional packages of 'Constants' and 'Conversions' as well as other options can be purchased from the App Store).Īs for actual handheld calculators, I've got a few old ones in storage box somewhere, including what was a rather expensive TI scientific calculator we bought one of our son's when they were in high school (they're both in their 40's now) but I haven't used it in years (the batteries have probably ruptured and leaked all over the innards by now). However, if you rotate it to the 'landscape' orientation, it becomes a full-blown scientific caculator. When held in 'portrait' orientation, it's s simple 4-function calculator. RE: Engineering calculator recommendations JohnRBaker (Mechanical) 28 Sep 14 10:30Īctually the only calculator I have on my iPhone is the one that it came with, but even then it's pretty handy. It's hard to find a really good scientific or graphing calculator on the typical retail shelves these days that come anywhere close to the HP-4(x) or TI-8(x) series of models. I also very highly recommend an app called MathStudio. I know you can get the HP-11C app for $2.99, the HP-15E app for $5.99, the i41-CX app for $7.99, and many others in that price range based on this morning's visit to the app store. On my devices, I have installed TI-59, HP-i41CX+, HP-i48GX (that one is free), PocketCAS, and a few others. There are a number of iPhone replica apps available. So far, though, I haven't found the iPhone or iPad app for this particular calculator. now offers the emulator (TI-EMU) as standalone without the requirement for the ROM dump. I like my TI 89 Titanium, and I still have the TI Emulator and ROM dump on my computer screen so that *THAT* is the calculator pop-up that I use on the PC.
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