Algebra homework tends to stall in the same places: an equation that will not rearrange, a matrix that will not resolve, or a log expression that looks different from the answer in the back of the book. The tools here work through those steps directly, showing the result for the values entered rather than explaining the topic in the abstract.
Linear work comes first here: the Slope Calculator, the Quadratic Equation Calculator and solvers for systems of equations and three-step linear equations. Matrix and vector tools follow, with the Matrix Determinant Calculator, inverse matrix tools and vector addition, dot product and cross product calculators for the linear algebra that sits behind them.
The rest covers the functions and numbers that keep appearing alongside equations: logarithms and exponents, roots including the Cube Root Calculator, absolute value, proportions and completing the square. Each tool handles one job, so a student can check a single step without running a whole problem through a general solver.
A worksheet gives you x = 4 and y = 20 and asks for the constant of proportionality, and the two mistakes that cost marks are dividing the wrong way round and stopping at a decimal when the answer should be a fraction.
In a geometric sequence every term is the previous term multiplied by the same number, the common ratio.
Enter the four entries of a 2×2 matrix and this calculator returns one number, the determinant, worked as det(A) = ad − bc.
A square matrix has an inverse exactly when its determinant is not zero, and this calculator finds it for 2×2, 3×3, 4×4, and 5×5 matrices.
Type a number in almost any shape you meet it: 671000000, 6.71e8, 6.71 x 10^8, or even “2.5 million”.
Simplifying an algebraic expression means rewriting it in its shortest correct form, and the skill underneath almost every simplification is combining like terms.
A linear combination calculator does two jobs that share one name. In linear algebra it computes c1v1 + c2v2 + …
The inverse log, also called the antilog, reverses a logarithm: if logb(x) = y, then x = by.
Enter a tangent value and this inverse tan calculator returns the angle in degrees and radians, with step-by-step working, the exact pi form, the degrees-minutes-seconds breakdown, and the sine and cosine of the angle.
The reciprocal of a number is 1 divided by that number: for a fraction, you simply flip the numerator and the denominator.
Linear work comes first here: the Slope Calculator, the Quadratic Equation Calculator and solvers for systems of equations and three-step linear equations. Matrix and vector tools follow, with the Matrix Determinant Calculator, inverse matrix tools and vector addition, dot product and cross product calculators for the linear algebra that sits behind them.
The rest covers the functions and numbers that keep appearing alongside equations: logarithms and exponents, roots including the Cube Root Calculator, absolute value, proportions and completing the square. Each tool handles one job, so a student can check a single step without running a whole problem through a general solver.