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Quintus V. (talk | contribs) link does not contain the promised list of test functions |
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|| [[File:ConstrTestFunc02.png|200px|Heart constrained multimodal function]]
|| <math>f(x,y) = -[\cos((x-0.1)y)]^2 - x \sin(3x+y)</math>,
subjected to:<math>x^2+y^2 < \left[2\cos t - \frac 1 2 \cos 2t - \frac 1 4 \cos 3t - \frac 1 8 \cos 4t\right]^2 + [2\sin t]^2 </math>
where: {{Math|1=''t'' = Atan2(x,y)}}
|| <math>f(2.0052938,1.1944509) = -2.0239884</math>
|| <math>-2.25\le x \le 2.
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| Gomez and Levy function<ref>{{cite journal |last1=Simionescu |first1=P.A. |date=2020 |title=A collection of bivariate nonlinear optimisation test problems with graphical representations |url= |journal=International Journal of Mathematical Modelling and Numerical Optimisation |volume=10 |issue=4 |pages=365-398 |doi=10.1504/IJMMNO.2020.110704 |access-date=}}</ref>
|| [[File:Gomez and Levy Function 1982.png|200px|Heart constrained multimodal function]]
|| <math>f(x,y) = 4 x^2 - 2.1 x^4 + \frac 1 3 x^6 + xy - 4y^2 -1 + y^4 </math>,
subjected to:<math> -\sin(4 \pi x) + 2\sin^2(2 \pi y) \le 1.5 </math>
|| <math>f(0.08984201,-0.7126564) = -1.031628453</math>
|| <math>-1\le x \le 0.75</math>, <math>-1\le y \le 1</math>
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| [[Simionescu function]]<ref>{{cite book|last=Simionescu|first=P.A.|title=Computer Aided Graphing and Simulation Tools for AutoCAD Users|year=2014|publisher=CRC Press|___location=Boca Raton, FL|isbn=978-1-4822-5290-3|edition=1st}}</ref>
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