Scalable Shapes

I'm just about done scripting the first interactive models for our ScienceSim parcel; a cube and sphere that can be scaled up or down, giving their new sizes and volumes when touched. The info is given by llSay so it appears in the lower left. The sphere volume is the only part not working yet. While the formula is indeed correct, the script calculates it differently than when I do it myself. So I've got something wrong in my order of operations or something.

ScienceSim Land Grant Program

I'm really excited to be a recipient of a ScienceSim Land Grant. I will be developing a parcel from now until June with interactive educational content, with the assistance of science and math teachers and a few students. One student in particular is very interested in architecture and wants to design and build our welcome/info center. The content we have in mind so far range from scalable two- and three-dimensional objects that will assist in students' understanding of area and volume, representations of mathematical formulas, such as distance = rate x time, and molecular models.