Math 42

With over 3.4 million downloads, MATH 42 is trusted worldwide by middle-school, high-school and college students to solve math problems, understand solutions, and get better grades. At a fraction of the cost of private tutors, MATH 42 delivers step-by-step solutions, intelligent approaches, and an Assessment Center for improving your skills.
 
TECHNOLOGY
• MATH 42 works without templates or pre-calculated solutions
• MATH 42 solves all problems on the fly, like a teacher at the board
• MATH 42 is a real symbolic algebra system
• MATH 42 is based on artificial intelligence
 
FEATURES 
• Intuitive formula entry
• Calculator that instantly computes during input
• Interactive step-by-step solutions
• Suggestions on how to approach a problem 
• Explanations of relevant math concepts with examples
• Interactive graphs to help visualize problems
• Assessment Center that fuels progress with tests and exercises
 
ASSESSMENT CENTER
• Tests and exercises created with educators and private tutors
• Training mode in which each problem can be analyzed step-by-step
• Test mode to identify strengths and weaknesses
• Results and statistics of progress over time
 
CAPABILITIES
Term transformation
• Simplifying and expanding
• Factorization (factoring out, applying binomial formulas)
• Transforming powers and roots
• Adding, multiplying, reducing and expanding fractions
• Computing the gcd and the lcm 
• Trigonometric transformations 
• Logarithmic transformations
 
Functions
• Roots
• Y-axis intersection
• Domain of definition
• Extremes (maximums, minimums)
• Inflexion points
• Curve sketching
• Derivation
• Fundamental derivatives
• Factor rule
• Sum rule
• Product rule 
• Quotient rule 
• Chain rule
• Integration 
• Fundamental integrals
• Integration by substitution
• Integration by parts
• Partial fraction decomposition
 
Equations
• Linear equations
• Quadratic equations (completing the square, quadratic formula, pq-formula)
• Special equations of higher degree
• Linear systems of equations
• Non-linear system of equations
 
Matrices
• Adding matrices
• Multiplying matrices
• Transposing matrices
• Inverting matrices
• Determinants 
• Characteristic polynomials
• Eigenvalues
• Eigenspaces
• Kernels
• Ranks
• Cross-product
• Gaussian elimination