Post Reply 
bug in arccotangent function
10-21-2022, 06:59 PM
Post: #8
RE: bug in arccotangent function
(10-21-2022 01:38 PM)gor1060 Wrote:  Why does HP Prime as educational tool have another definition of arccotangent function opposite to such global educational tools as TI-Nspire CX CAS and TI-89 Titanium?

Some textbooks define acot(x) as pi/2-atan(x) as TI does. This is consistent with acos(x)=pi/2-asin(x) and acsc(x)=pi/2-asec(x).

Other textbooks define acot(x) as atan(1/x) as HP does. This is consistent with asec(x)=acos(1/x) and acsc(x)=asin(1/x).

Unfortunately, there is no consensus in the educational world as to the "correct" one.
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
bug in arccotangent function - gor1060 - 10-20-2022, 02:38 PM
RE: bug in arccotangent function - gor1060 - 10-21-2022, 01:38 PM
RE: bug in arccotangent function - Wes Loewer - 10-21-2022 06:59 PM
RE: bug in arccotangent function - klesl - 10-21-2022, 05:07 PM
RE: bug in arccotangent function - gor1060 - 10-22-2022, 01:58 AM



User(s) browsing this thread: 1 Guest(s)