Copie de Matrix and Linear Transformation (HTML5 version)
Anthony OR 柯志明
Drag the red and blue points in the 2nd window on the grid points to see how a linear transformation is represented by a matrix.
Unwrapping a Cylinder (surface area)
Volumes of Prisms, Cylinders
Thin Slice: Special Triangle Theorems (1B)
Spider and fly
Visualizing Complex Polynomials
Locus_Equidistant from parallel lines
Images to applet: Generating two different uniformly distributed points on a sphere from another uniform distribution.