Did you mean, this?
using Plots
saw_blade(x) = floor(x) / x
xspan = 0.01:0.01:10
plot(xspan, saw_blade.(xspan), legend = :none)

Did you mean, this?
using Plots
saw_blade(x) = floor(x) / x
xspan = 0.01:0.01:10
plot(xspan, saw_blade.(xspan), legend = :none)
