as many of you know, interpolation is the study of approximating functions given a number of points. Currently I want to do a project but it is required to join. I would really appreciate it if someone can help me find a quick start guide to grasp the concepts (Bilinear, Spline, Polynomial interpolation...) at the most basic level and at least be able to do some exercises in this area (about math, not coding). I find some books but their math blows me away :'( given the time I have.
I understand that there is no royal way to learning, but please, could someone please share your experience in learning this wonder of math?