Post Reply 
Display more than just one root
11-17-2015, 02:00 PM
Post: #6
RE: Display more than just one root
With the Solve App you will only find real solutions, so for X^2-3x+5=0 you will receive "Error: Extremum found"

fsolve in CAS will try to find also complex solutions, so if "Use i" is checked in CAS Settings fsolve(x^2-3*x+5=0) will return:
[1.5-1.65831239518*i,1.5+1.65831239518*i]
which are numerical solutions and not exact solution like with solve(x^2-3*x+5=0) which will return
{1/2*(√11*i+3),1/2*(-√11*i+3)}
cfsolve(x^2-3*x+5=0) give the same answer independently of the "Use i" setting.
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
Display more than just one root - conrad8 - 06-29-2015, 02:43 PM
RE: Display more than just one root - retoa - 11-17-2015 02:00 PM



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