Post Reply 
Hp 50g - "?" message and CAS bugs
11-03-2020, 04:30 PM
Post: #7
RE: Hp 50g - "?" message
(11-03-2020 08:48 AM)Carsen Wrote:  In short, this is by design. Although, it does not answer why it is designed this way.

With sgn(x) = x/abs(x), symbolic manipulations are simpler.

Hp50g> 'X+SIN(X)'
Hp50g> SIGN             → (X+SIN(X)) / |X+SIN(X)|

Adding sgn(0)=0 rule, we get this:

IFTE(X+SIN(X) , (X+SIN(X)) / |X+SIN(X)| , 0)
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
RE: Hp 50g - "?" message - Carsen - 11-02-2020, 07:00 PM
RE: Hp 50g - "?" message - ttw - 11-03-2020, 03:51 AM
RE: Hp 50g - "?" message - Carsen - 11-03-2020, 08:48 AM
RE: Hp 50g - "?" message - Albert Chan - 11-03-2020 04:30 PM
RE: Hp 50g - "?" message - ttw - 11-03-2020, 09:11 PM
RE: Hp 50g - "?" message - franz.b - 11-03-2020, 07:23 AM
RE: Hp 50g - "?" message - franz.b - 11-03-2020, 10:45 AM



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