Surfc equivalent? Plotting contour underneath surfacep plot

MATLAB has this feature which allows you to plot a contour plot underneath a surface plot of a function. I would like to recreate this in JULIA. If I used contour!() after surface(), this doesn’t seem to work…

Thanks!

Check this out: Gnuplot gallery

There is an example on this page using plots: https://github.com/jverzani/CalculusWithJulia.jl/blob/master/CwJ/differentiable_vector_calculus/plots-plotting.jmd#L243

But other plotting packages can render these better.

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