Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
General Math
Calculus
Differential Equations
Topology and Analysis
Linear and Abstract Algebra
Differential Geometry
Set Theory, Logic, Probability, Statistics
MATLAB, Maple, Mathematica, LaTeX
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
General Math
Calculus
Differential Equations
Topology and Analysis
Linear and Abstract Algebra
Differential Geometry
Set Theory, Logic, Probability, Statistics
MATLAB, Maple, Mathematica, LaTeX
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Mathematics
Linear and Abstract Algebra
Forcing conditions in a solution of an under-determined system
Reply to thread
Message
[QUOTE="Telemachus, post: 6040949, member: 245368"] Hi there. I am solving an under-determined system of equations. The solver I've written seems to work fine, but I would like to have some control on the solution I obtain. From the infinite set of solutions of my system, I would like to use only those that fulfill some conditions. One of those conditions is that the elements of the solution should ##x_k\geq-1##. The other condition I would like it to meet is more difficult to explain, but basically it has to do with that there should be some relation between some sets of elements in the solution. Basically, the element ##x_1## should be equal to the element, let's say ##x_M##, and ##x_{M-c}## where c and M are constants and so on. Is there a way to meet these conditions? I am programming this in fortran, and I am using lapack to solve the under-determined system (I'm using the dgels subroutine). The program finds a solution, but sometimes the conditions are not fulfilled, and the solutions I obtain are physically nonsensical. Bye there. [/QUOTE]
Insert quotes…
Post reply
Forums
Mathematics
Linear and Abstract Algebra
Forcing conditions in a solution of an under-determined system
Back
Top