Problem 481. Rosenbrock's Banana Function and its derivatives

Created by Robert Canfield

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Write a function to return the value of Rosenbrock's two-dimensional banana function, as well as it's gradient (column) vector and Hessian matrix, given a vector of it's two independent variables x1 and x2. Here's the Rosenbrock function:

 100*[(x2-x1^2)^2] + (1-x1)^2

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Last Solution submitted on Nov 10, 2019

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2 Comments

Venu Lolla on 12 Mar 2012

@Robert, can you please verify that the last test case is correct?

Robert Canfield on 12 Mar 2012

I corrected a typo, checked the "Restore all solutions" box, and clicked "Save." Not sure how to tell when they're rescored.

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aoe4084 banana rosenbrock

Problem 481. Rosenbrock's Banana Function and its derivatives

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Last 200 Solutions

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Problem 481. Rosenbrock's Banana Function and its derivatives

Solution Stats

Last 200 Solutions

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Problem Recent Solvers90

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