Here is my code:
using MTH229 using Plots f(x)=x theme(:dark) plot(f,-5,5,linewidth=5,c=:hotpink,legend=false,arrow=true)
Here is a picture of the output:
How do I get the arrow to appear on both ends of the line instead of just one?
It’s a bit of a hacky solution, but for the example in the question:
plot!([-4.99,-5],[f(-4.99), f(-5)], linewidth=5,c=:hotpink,legend=false,arrow=true)
adds the reverse arrow. Generalizing to any chart is pretty straight forward. The idea is to draw a line chart with a reverse direction, for just a tiny bit at the location of the reverse arrow and let Plot add the reverse arrow.