But most functions listed here have versions that take ... and use e_theme_custom("name_of_my_theme") to add it to a plot. You can also tweak a theme right in your graph code — for example ...

Begin the code for plotting the surface plot in grayscale with the standard surface plot function, surf, followed by a comma:surf(x,y,z), Follow the previous code with the following text ...

The Sphere function has d local minima except for the global one. It is continuous, convex and unimodal. The plot shows its two-dimensional form. The function is usually evaluated on the hypercube x i ...

The Rosenbrock function, also referred to as the Valley or Banana function, is a popular test problem for gradient-based optimization algorithms. It is shown in the plot above in its two-dimensional ...