### Division By Zero 2012-11-23

In a former life (while a GA in graduate school), I was forced to had the pleasure to teach elementary and intermediate algebra. These courses are essentially the algebra curriculum you should learn during High School in the United States. Unfortunately, many college-bound students don't master the material, and find themselves in a remedial class during their college career. That's the class I was teaching. There are many concepts that are difficult for students to understand, but one ...

### MacMathematics 2007-04-23

One of my Favorite Mac Apps is Grapher. It lets you graph everything from simple 2D equations to complex 3D equations. For example, want to see all of the Axes of symmetry for a cube? Just enter the equations x=0, y=0, z=0, x=y, x=-y, x=z, x=-z, y=z, and y=-z, and voila! Pictures make math fun! You can also save these in .gcx files. Download my cube: CubeAxesOfSymmetry.gcx

### MacMathematics 2007-04-23

One of my Favorite Mac Apps is Grapher. It lets you graph everything from simple 2D equations to complex 3D equations. For example, want to see all of the Axes of symmetry for a cube? Just enter the equations x=0, y=0, z=0, x=y, x=-y, x=z, x=-z, y=z, and y=-z, and voila!Pictures make math fun! You can also save these in .gcx files. Download my cube: CubeAxesOfSymmetry.gcx