Absolute Value Calculator
Absolute value answers a simple question: how far is this number from zero, ignoring direction?
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Proportion Calculator
A proportion says two ratios are equal: a/b = c/d.
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Quadratic Equation Calculator
Enter the three coefficients of ax² + bx + c = 0 and this calculator returns the roots with full step-by-step working, the discriminant, the vertex, the axis of symmetry, and a graph of the parabola with the roots marked.
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Vector Length Calculator
Every vector has a length, the single number that says how big it is once direction is set aside: a force, a velocity, a displacement, reduced to its size.
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Slope Calculator
Slope shows up everywhere: algebra homework, roof pitches, wheelchair ramps, road grades.
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.