Welcome Guest! To enable all features please Login. New Registrations are disabled.

Notification

Icon
Error

Login


Options
Go to last post Go to first unread
Offline Aung  
#1 Posted : 11 December 2018 13:34:19(UTC)
Aung

Rank: Newbie

Groups: Registered
Joined: 12/11/2018(UTC)
Posts: 1
Russian Federation
Location: Moscow

smath studio wspgTGSPS.pngI calculated the root function in Mathcad 15. This is normal. But I calculated the root function in Smathcad Studio, but I cannot get the result. why does SMath say "NO REAL ROOTS" Please tell me someone.Mathcad wspgTGSPS.png

Wanna join the discussion?! Login to your SMath Studio Forum forum account. New Registrations are disabled.

Offline Davide Carpi  
#2 Posted : 11 December 2018 15:24:00(UTC)
Davide Carpi


Rank: Advanced Member

Groups: Registered, Advanced Member
Joined: 13/01/2012(UTC)
Posts: 2,639
Man
Italy
Location: Italy

Was thanked: 1323 time(s) in 873 post(s)
Hello,

solve(2) uses a global range of your own executable, that can be set in Tools > Options > Calculation > Roots (range); to have more control it is better to use solve(4) (the number is how many arguments are rquested by the function);

for roots, the syntax is roots(functions,unknowns) or roots(functions,unknowns,guess) (roots(2) and roots(3))

wiki: roots , solve

Edited by user 11 December 2018 15:27:21(UTC)  | Reason: Not specified

If you like my plugins consider to support SMath Studio buying a plan; to offer me a coffee: paypal.me/dcprojects
thanks 1 user thanked Davide Carpi for this useful post.
on 11/12/2018(UTC)
Offline Jean Giraud  
#3 Posted : 11 December 2018 16:56:30(UTC)
Jean Giraud

Rank: Guest

Groups: Registered
Joined: 04/07/2015(UTC)
Posts: 6,868
Canada

Was thanked: 980 time(s) in 808 post(s)
Originally Posted by: Aung Go to Quoted Post
why does SMath say "NO REAL ROOTS" Please tell me someone.


NO REAL ROOTS is good indication of wrong range in the solver.
Roots may be complex, use the Smath/Maple companion [Example: roots of unity].
Always wise to attach the document. Much wiser => plot the function before solving.

Cheers ... Jean

Solve General EDU.sm (36kb) downloaded 136 time(s).
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.