- Pre-Algebra Formulas pre-algebra formulas reference is the collection equations for the study of basic mathematics.
- Algebra Formulas algebra formulas reference is the collection equations for the study of solving equations and expressions.
- Geometry Formulas geometry formulas reference is the collection equations for the study of 2 or 3 dimensional (2d or 3d) geometric shapes.
- Statistics and Probability Formulas probability and statistics formulas reference is the collection basic equations for the study of how to design and test the statistical experiments.
- Matrix Formulas matrix formulas reference is the collection basic equations for the study of 2x2, 3x3, 4x4 or nxn matrix or matrices addition, subtraction, multiplication, determinant, inverse or transpose matrix.
- Electrical Engineering Formulas electrical engineering formulas reference is the collection equations which are being used in various calculations.
- Mechanical Engineering Formulas mechanical engineering formulas reference is the collection equations which are being used in various calculations.
- Environmental Engineering Formulas Environmental engineering formulas reference is the collection basic equations for the study of air pollution, water pollution, waste management, waste collection, population projection etc.