Solving Equation systems - Equation systems - Сообщения
#1 Опубликовано: 30.10.2016 08:20:11
hello again
I want to solve a system of equations
my system is linear with 4 equations and 4 variables.
How can i do this the best way.
I think that smath cant solve the equation system with the solve command.
I read from the german handbook that you can use the maxima plugin to use the maxima solver, but the maxima plugin fails to install
.
Also when i try to solve it using matrices it says units dont match , when i remove the units the answer seems wrong.
is there a way to solve my 4 equations using smath?
I want to solve a system of equations
my system is linear with 4 equations and 4 variables.
How can i do this the best way.
I think that smath cant solve the equation system with the solve command.
I read from the german handbook that you can use the maxima plugin to use the maxima solver, but the maxima plugin fails to install
.Also when i try to solve it using matrices it says units dont match , when i remove the units the answer seems wrong.
is there a way to solve my 4 equations using smath?
#2 Опубликовано: 30.10.2016 09:48:25
Hello,
Have you tried to use eval() like eval( A^-1*C )=
Try first without units, then with units (all nonzero elements of the matrix A must have units of the same dimension - meaning that if you divide every two matrix elements the result would be dimensinless)
Regards,
Radovan
Have you tried to use eval() like eval( A^-1*C )=
Try first without units, then with units (all nonzero elements of the matrix A must have units of the same dimension - meaning that if you divide every two matrix elements the result would be dimensinless)
Regards,
Radovan
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
#3 Опубликовано: 30.10.2016 10:33:00
thx , is there a way to solve equations without using matrices?
#4 Опубликовано: 30.10.2016 10:53:03
thx , is there a way to solve equations without using matrices?
Maybe like this:
roots() - does not need additional plugins
FindRoot() - NonlinearSolvers plugin
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
#5 Опубликовано: 30.10.2016 12:05:07
#6 Опубликовано: 30.10.2016 12:25:21
Nothing wrong solving [n x n] system via matrix.
Be damned careful if you type entries rather than
collecting from source. Visit "So much from so little".
Just figure how important for Engineering works !!!
Jean
Solve [x,y,z] Compactum.sm
Be damned careful if you type entries rather than
collecting from source. Visit "So much from so little".
Just figure how important for Engineering works !!!
Jean
Solve [x,y,z] Compactum.sm
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