Below is a figure that shows a ramp function (black dots). The blue line is an interpolation found using interpolation in the frequency domain. The interpolation at the start and end is not good. See www.getyourdataon.com to learn how to fix this.
Below is a figure that shows a ramp function (black dots). The blue line is an interpolation found using interpolation in the frequency domain. The interpolation at the start and end is not good. See www.getyourdataon.com to learn how to fix this.