5/5 rating based on 63 reviews. Read all reviews for Archimedes Calculator for iPhone.
Archimedes Calculator is free iOS app published by Patrick Pijnappel
张点点同学
I loved this calculator so much but the latest update was 2 years ago... still no support iPhone X.... :(
montesomething
I love this app as a calculator and it has completely replaced my calculator app for physics and more advanced math. It just has a couple of small issues like on the graph when you trace it never seems to quite find the intercept exactly, instead showing a super close number in scientific notation (floating point issue?). Also as other reviewers have mentioned, adding matrix features would definitely bring this app to 5 stars
the toxmeister
This app, like many other calculator apps, is missing an important button that even Apple's free included calculator has. That is a ± button. Does nobody enter negative numbers any more? Anyway, I don't think the developer exists anymore. Clicking on the App Support button takes you to a DNS search page.
malus_domestica
Great product but no updates. No iPhone X support.
banesullivan
Be warned if using this for academic or professional applications. The trigonometric functions do not output correct values regardless of use with degrees vs radians. This calculator states sin(140deg) = 0.681807 where google and my TI-83 state that sin(140deg) = 0.642788. This can result in very significant percent errors if using trig functions for intensive calculations. Also this calculator states sin(pi/2)=sin(90deg)=0.999439which should be 1.0
Snookie Gooch
A previous review stated the trig functions are incorrect. Not so. I have a TI-83 as well as Archimedes, both give the exact same result for sin(140). I really like this calculator, don't ask me why but I collect them. I have about 20. If I ever decide to delete all but 2 or 3, Archimedes would be one of the keepers.
TimNJ20
I'm a practicing electrical engineer and I use this app every day without fail. The interface makes setting up (and editing) a calculation easy and fast. Get it. Well worth it.
Rueben_Sammiches
A really wonderful calculator. I love the inline editing. Not only does it function really well it looks wonderful. I emailed the developer suggesting a few features (like !'s) and they responded promptly and kindly. Haven't seen the features come out yet but I still hope for them because they will complete an already amazing app. The only thing I feel that is a major lack is that it doesn't have a simple apple watch app to pair with it.