Math+Magic Pro Edition for Adobe InDesign for Windows
MathMagic Plug-ins for InDesign CS3, CS4, CS5
MathMagic is an Equation editor for all users ranging from novices, students, teachers, higher education, and to the high-end desktop publishers.
It provides you with very easy user interface and yet powerful features in making equations. You can easily create every imaginable form of mathematical expressions with MathMagic.