Package dev.nm.analysis.function.rn2r1

Class R1Projection

java.lang.Object
dev.nm.analysis.function.rn2r1.AbstractRealScalarFunction
dev.nm.analysis.function.rn2r1.R1Projection
All Implemented Interfaces:
Function<Vector,Double>, RealScalarFunction
public class R1Projection extends AbstractRealScalarFunction
Projection creates a real-valued function RealScalarFunction from a vector-valued function RealVectorFunction by taking only one of its coordinate components in the vector output. For example, suppose we have a \(R^n \rightarrow R^m\) function, \(f_1 = [y_1, y_2, y_3]'\). We construct a \(R^n \rightarrow R\) function by taking its second coordinate. That is, \(f_2 = y_2\).

  • Constructor Details

    • R1Projection

      public R1Projection(RealVectorFunction f, int dimension)
      Construct a \(R^n \rightarrow R\) projection from a \(R^n \rightarrow R^m\) function f.
      Parameters:
      f - a vector-valued function
      dimension - the dimension/coordinate of the f value to output

  • Method Details

    • evaluate

      public Double evaluate(Vector x)
      Description copied from interface: Function
      Evaluate the function f at x, where x is from the domain.
      Parameters:
      x - x
      Returns:
      f(x)