## Picture Gallery Transformation Perspective and Proportion Curve Fitting Animation | # Curve Fitting Many pictures contain elements that can be modeled by mathematical curves—from straight lines and parabolas to polynomial functions and conic sections. Use these pictures as backdrops for fitting curves or for measurement. You can drag and drop, or copy and paste, these pictures into your sketches. To copy an image, right-click (or Control-click) the image and choose Copy Image from the pop-up menu. Then switch to Sketchpad and choose Edit | Paste Picture. ## Back to Home