soobench (version 1.9.18)

generate_goldstein_price_function: Generator for the Goldstein-Price function.

Description

The definition used is

Usage

generate_goldstein_price_function()

Value

A soo_function.

Details

$$f(x)=(1+{(x_1+x_2+1)}^2(19-14x_1+13x_1^2-14x_2+6x_1{x}_2+3x_2^2))(30+{(2x_1-3x_2)}^2(18-32x_1+12x_1^2+48x_2-36x_1{x}_2+27x_2^2))$$

References

Goldstein, A. A. and Price, I. F. On descent from local minima, Mathematics of Computation 25, 569-574, 1971.

Examples

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

# }