soobench (version 1.9.18)

generate_beale_function: Generator for the Beale test function.

Description

The function is defined as:

Usage

generate_beale_function()

Value

A soo_function.

Details

$$ f(x) = (1.5 - x_1 * (1 - x_2))^2 + (2.25 - x_1 * (1 - x_2^2))^2 + (2.625 - x_1 * (1-x_2^3))^2 $$

Examples

# NOT RUN {
f <- generate_beale_function()
plot(f, rank=TRUE)

# }