arcsin
https://gyazo.com/2608f843b3b9658f44a694b3f84c911a
code:arcsin.jl
using Plots
x = -1:0.01:1
plt = plot(x, asin.(x);
label="arcsin(x)",
aspect_ratio=1,
framestyle=:origin)
vline!(
-1,1
, label="x = -1,1", color=:black, linestyle=:dash)