SymCalc+

The perfect tool for students, teachers and engineers, built on an extremely powerful algebra engine, SymCalc solves any math problems from basic arithmetics to university-level advanced math. It offers all the advantages of an advanced graphing/scientific calculator mixed with the convenience of a modern mobile app.
Features overview:
- Exact arithmetic. 5/15 is 1/3 and not 0.333 (unless you select rounded numerical mode)
- Store unlimited number of variables, create custom functions
- Algebra: operations on polynomials, such as expansion and factorization, collecting terms, division with remainder, etc.
- Calculus: derivatives, integrals, limits, taylor expansion, etc.
- Linear algebra: matrix operations, determinant, rank, reduced echelon form, characteristic polynomial, etc.
- Solvers: single equations or systems, symbolically or numerically, differential equations
- Complex arithmetics
- Graphing
- Session management: export, import sessions or create PDF files
- All built-in functions come with descriptions and examples
- Fully offline