iPhone SE3 calculator returns cosine (pi) as -1.0, incorrectly. Answer is 1.0 Why the error? How correct calcultor?
Earlier it returned incorrect answer for sine (pi) as about .05, when answer is 0. But a few hours later I get correct answer. a friend's iPhone 12 calculatior also gets -1.0 for cosine (pi)
iPhone SE (3rd generation)
rz1b wrote:
iPhone SE3 calculator returns cosine (pi) as -1.0, incorrectly. Answer is 1.0 Why the error? How correct calcultor?
Earlier it returned incorrect answer for sine (pi) as about .05, when answer is 0. But a few hours later I get correct answer. a friend's iPhone 12 calculatior also gets -1.0 for cosine (pi)
Why questions can't be answered on this user to user only forum. Apple isn't here nor do they participate or read for user feedback. If you're sure there is an issue with the calculator, you can let Apple know here --> Product Feedback - Apple
https://www.cuemath.com/trigonometry/cos-pi/
I assume you are using Radians instead of Degrees on the calculator.
Calculator error on iPhone SE3
