Top Alternatives to Sage

MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and fourth-generation programming language.

GNU Octave is a programming language for scientific computing.

R is an open source programming language and software environment for statistical computing and graphics that is supported by the R Foundation.

Wolfram Mathematica (usually termed Mathematica, Mathematica software suite) is a mathematical symbolic computation program.

Scilab is an open source, cross-platform numerical computational package and a high-level, numerically oriented programming language.

NumPy and SciPy are open-source add-on modules to Python that provide common mathematical and numerical routines in pre-compiled, fast functions.

Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.

Maxima is a computer algebra system based on a version of Macsyma.

Maple is a symbolic and numeric computing environment, and is also a multi-paradigm programming language.

Python(x,y) is a free scientific and engineering development software for numerical computations, data analysis and data visualization based on Python.

Julia is a high-level, high-performance dynamic programming language for numerical computing.

Spyder is the Scientific PYthon Development EnviRonment: a powerful interactive development environment for the Python language with advanced editing.

fxSolver is a math solver for engineering and scientific equations.

SymPy is a Python library for symbolic computation. It provides computer algebra capabilities either as a standalone application, as a library to other applications, or live on the web as SymPy Live or SymPy Gamma.

GMDH Shell is an advanced but easy to use tool for predictive analytics and data mining.

FreeMat is a free environment for rapid engineering and scientific prototyping and data processing.

Graph is an open source application used to draw mathematical graphs in a coordinate system.