The phrase "about calculators" is correct and usable in written English.
You can use it when discussing topics, features, or information related to calculators.
Example: "In this article, we will explore various functions and uses about calculators that can enhance your mathematical skills."
Alternatives: "regarding calculators" or "concerning calculators".
Are you serious about no calculators?
Twenty years ago, there were debates about whether calculators would ruin the discipline of learning arithmetic.
Correction: August 10, 2004, Tuesday A brief report in the Online Diary column of Circuits on July 29 about health calculators on the Web rendered a word incorrectly in the title of a Harvard group that maintains a site called Your Disease Risk.
In the boarding house, we see "a tall, longbacked man with a doorknob head and a mouthful of prominent teeth," business talk about "pocket calculators" (whatever they may be) and men "occupied with their food like hogs rooting in a bucket".
It is organized into channels, each of which has a specific name and (usually) is controlled by specific operators (who have the ability to remove you from the channel, permanently if so desired); the largest networks have over 100000 users (but of course most of them aren't there to talk about TI calculators).
Junior doctors joining the hospital in February 2013 were informed about the calculators during their induction programmes for safe prescribing.
Moreover, information about the calculators and how to use them, as well as the precalculator results, were presented at one of the hospital Grand Rounds to encourage their use.
Perfoming the same computation on both calculators takes about 2/3 as long on HW2 as it does.
(One strange quirk about that calculator is that it treats commas like periods so don't use them when entering numbers). It's a bit more complicated to use, but who said retiring early was easy?
Amidst the debate about the calculator's accuracy, it is important to remember that a small group of individuals, steeped in years of practice focusing on cholesterol levels, were able articulate a clear set of principles that will change the direction of practice.
