Generate a function with lots of local maxima and minima. The function has the form
f(x,y) = 3*(1-x)^2*exp(-x^2 - (y+1)^2) ... - 10*(x/5 - x^3 - y^5)*exp(-x^2-y^2) ... - 1/3*exp(-(x+1)^2 - y^2)Called without a return argument,
peaks
plots the surface of the above function usingmesh
. If n is a scalar, thepeaks
returns the values of the above function on a n-by-n mesh over the range[-3,3]
. The default value for n is 49.If n is a vector, then it represents the x and y values of the grid on which to calculate the above function. The x and y values can be specified separately.