MATSLISE: Schrödinger    

Using parameters in the input fields

Figure 2: The problem-specification window for a Schrödinger problem using the parameter fields.

As an extra feature, it is possible to use a parameter in the input fields V(x), a, b and in the boundary conditions.
When any of these input fields contains a parameter (e.g. c) the user must enter the name of the parameter (e.g. c) and the value(s) of the parameter (e.g. 4 or 1:5 or [1,4,6]) in the "parameter names(s)"-field, resp. "parameter value(s)"-field.

The parameter-fields can also be used to replace rather lengthy subexpressions in the potential-function by a parameter (See e.g. the Truncated Gelfand-Levitan predefined problem).

It is possible to define more than one parameter (Figure 2 or the predefined problem in Razavy.mat). But it is not allowed to use parameters in the specification of the value(s) of a parameter. When multiple parameters are used, then the names of the parameters are entered in the parameter name(s)-field and separated by a comma. The corresponding values for the parameters are entered in the parameter value(s)-field, also separated by a comma.

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