Add, define, and remove global parameters. For parameters in results and postprocessing, model.result().param() works in the same way as model.param().

 model.param() is a collection of global model parameters. Likewise, model.result().param() is a collection of model parameters for results and postprocessing.

 model.param().set(<param>,<expr>) defines the parameter <param> as <expr>.

 model.param().set(<param>,<expr>,<descr>) defines the parameter <param> as <expr> and assigns it the description <descr>.

 model.param().descr(<param>,<descr>) sets the description for the parameter <param>.

 model.param().remove(<param>) removes the parameter <param>.  model.param().clear() removes all parameters.

  model.param().varnames() returns the names of all parameters as a string array.

 model.param().get(<param>) returns the parameter value as a string.

 model.param().descr(<param>) returns the parameter description as a string.

 model.param().evaluate(<param>) evaluates the value of the parameter <param> as a double real-valued floating-point value. For complex-valued parameters, use the evaluateComplex method instead.

 model.param().evaluateComplex(<param>) evaluates the value of the parameter <param> as a double floating-point array with the real and imaginary part of a complex-valued parameter.

model.param().evaluateUnit(<param>) returns the unit of the parameter <param> if defined. It returns null if the parameter has no unit defined, or if the model does not use any unit system.

For model.param().loadFile() and model.param().saveFile(), see The loadFile and saveFile Methods.

Define the parameter c in terms of another parameter a and then remove c.