# cec2005benchmark12: Function Number 12

Description Usage Arguments Value References See Also Examples

### Description

Schwefel's Problem 2.13

• x \in [-π,π]^D

• Global optimum F(x^*) = -460

### Usage

 1 cec2005benchmark12(x) 

### Arguments

 x Either a vector with 2, 10, 30 or 50 elements or a matrix with the same number of columns and one row for each vector to be evaluated

### Value

A vector with the evaluation of the function for each row of x

### References

P. N. Suganthan, N. Hansen, J. J. Liang, K. Deb, Y.-P. Chen, A. Auger, S. Tiwari (2005). Problem Definitions and Evaluation Criteria for the CEC 2005 Special Session on Real-Parameter Optimization, Technical report, Nanyang Technological University, Singapore, May 2005, http://www.ntu.edu.sg/home/EPNSugan/index_files/CEC-05/CEC05.htm.

cec2005benchmark

### Examples

 1 cec2005benchmark12(runif(10, -pi, pi)) 

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