.@jskherman Here's f(x)=((e^x)(sin(abs(x))))/(sin(x)cos(x)+e^x) interpolated using 20 equally spaced points (blue) and 20 Chebyshev points (red). For your function, Runge's phenomenon is quite bad.
.@jskherman Here's f(x)=((e^x)(sin(abs(x))))/(sin(x)cos(x)+e^x) interpolated using 20 equally spaced points (blue) and 20 Chebyshev points (red). For your function, Runge's phenomenon is quite bad.
.@jskherman Here's f(x)=(sin(x))/x interpolated using 20 equally spaced points (blue) and 20 Chebyshev points (red). For your function, Runge's phenomenon is not a problem.