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#1 Posted: 1/27/2019 2:38:08 PM
Paulius

Paulius

0 likes in 11 posts.

Group: User

Hello, maybe someone could help, then I solve the equation with symbols it doesn't solve (I've attached the file), when I make simplification for my self it solve:

example p:=solve(b*x*x/2+a*As2*(x-d2)=a*As1*(d-x),x) it says no real roots

then I simplified by mysef

p:=solve(0.125x^2+0.0491x-0.01998=0, x) it give answer?

best regards,
Paulius

Gelzbetonines konstrukcijos ilinkio skaiciavimas.sm (35 KiB) downloaded 37 time(s).
#2 Posted: 1/27/2019 3:05:54 PM
Вячеслав Мезенцев

Вячеслав Мезенцев

1402 likes in 1708 posts.

Group: Moderator

Alternatively you can try maple() function from the Maple Tools extension.

2019-01-27_23-04-45.png
Russia ☭ forever, Viacheslav N. Mezentsev
1 users liked this post
Davide Carpi 1/28/2019 5:53:00 AM
#3 Posted: 1/27/2019 4:14:40 PM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

Group: User

Wrote

Hello, maybe someone could help


1. recast the functions unitless
2. plot
3. solve implicit in this case.

SolveImplicit.PNG
1 users liked this post
Davide Carpi 1/28/2019 5:53:00 AM
#4 Posted: 1/28/2019 3:56:15 AM
Alvaro Diaz Falconi

Alvaro Diaz Falconi

992 likes in 1674 posts.

Group: User

Hi. You need to handle units in the SMath solve function. Here it's a way.

Clipboard01.gif

Best regards.
Alvaro.
4 users liked this post
NDTM Amarasekera 1/28/2019 7:13:00 AM, sergio 1/28/2019 6:54:00 AM, Davide Carpi 1/28/2019 5:53:00 AM, frapuano 1/28/2019 12:57:00 PM
#5 Posted: 1/28/2019 10:29:14 AM
Martin Kraska

Martin Kraska

1222 likes in 2150 posts.

Group: Moderator

Solve() from the Maxima plugin can handle units directly (symbolic solver)

2019-01-28 14_26_49-SMath Studio - [Gelzbetonines%20konstrukcijos%20ilinkio%20skaiciavimas.sm_].png
Martin Kraska Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
1 users liked this post
frapuano 1/28/2019 12:57:00 PM
#6 Posted: 1/28/2019 2:21:38 PM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

Group: User

UnitOtherwise.PNG
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