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--- basic_notions:boundary_conditions [2018/03/28 13:13]
jakobadmin
+++ basic_notions:boundary_conditions [2018/03/30 11:13] (current)
jakobadmin [Intuitive]
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 <tabbox Intuitive>
+<blockquote>Generically, if we can formulate the [[:equations|equations of motion]] for a theory, we have everything at our disposal to describe the solutions of the theory. However, in general we have to supplement the equations with the situation we want to actually describe with the theory. In the case of the planet, we have to add where the planet was and where it moved to at a certain instance of time. Otherwise the equation of motion would give us the solutions for all possible initial positions and velocities of the planet, and thus an infinite number of possible solutions to the theory. Such additional information are called boundary conditions. They select out of any possible kind of behavior described by a theory the particular one which is compatible with the state a system is in.<cite>http://axelmaas.blogspot.de/2012/03/equations-that-describe-world.html</cite></blockquote>
-<note tip>
-Explanations in this section should contain no formulas, but instead colloquial things like you would hear them during a coffee break or at a cocktail party.
-</note>
 <tabbox Concrete>