Parabola2D: Problem environment for a 2-dimensional quadratic parabola

In xega: Extended Evolutionary and Genetic Algorithms

Problem environment for a 2-dimensional quadratic parabola

Description

Problem environment for finding maxima and minima of a 2-dimensional quadratic parabola.

Usage

Parabola2D

Format

An object of class list of length 8.

Value

A named list

• $name(): Returns the name of the problem environment.

• $bitlength(): The vector of the bitlengths of the parameters.

• $genelength(): The number of bits of a gene.

• $lb(): The vector of lower bounds of the parameters.

• $ub(): The vector of upper bounds of the parameters.

• $f(parm): The implementation of the function of the quadratic parabola.

  • parm: A 2-element vector of reals.

  • Returns the value of the function.

• $describe(): Returns the description of the problem environment.

• $solution(): The solutions (maxima/minima) of the problem environment (if known).

See Also

Other Problem Environment: NewEnvXOR(), Parabola2DEarly, lau15

Examples

names(Parabola2D)
Parabola2D$name()
Parabola2D$describe()
Parabola2D$bitlength()
Parabola2D$genelength()
Parabola2D$lb()
Parabola2D$ub()
Parabola2D$f
Parabola2D$f(c(2.2, -1.37))
Parabola2D$solution()
Parabola2D$solution()$minimum
Parabola2D$solution()$minpoints
Parabola2D$solution()$maximum
Parabola2D$solution()$maxpoints

xega documentation built on Feb. 17, 2026, 5:07 p.m.