Wrangle Node Example - Calculate Vectors for Normal on Curve

Suppose you have a curve and you need to calculate the direction to copy geometry onto this. Polyframe works in some cases, but here is a robust version using point wrangle nodes. The

Take the point and the next point and subtract to get the tangent vector. Note at the end, there is no next point so you have to deal with this by taking the previous point and reversing the vector. Code below.