R programmning

4. The Rosenbrock function is a commonly used test function, given by f(x,y)=(1x)2+100(yx2)2. You can plot the function in the region [2,2][2,5] using the code below (Figure 9). It has a single global minimum at (1,1). \# program spuRs/resources/scripts/Rosenbrock.r Rosenbrock g