ATMath · Online learning toolkit
Online Step-by-Step Math & Calculator System
Free educational math calculators providing step-by-step solutions, interactive graphs, and accurate KaTeX formulas for students and teachers.
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ATMath Ecosystem: Total 41 online calculators
Algebra
Quadratic Equation Solver Ready
Solve ax² + bx + c = 0 step by step with the discriminant and roots.
Linear Equation Solver Ready
Solve ax + b = 0 and check when the equation has a solution.
System of Equations Ready
Solve two-variable systems by substitution or elimination.
Fraction Calculator Ready
Simplify, find common denominators, add, subtract, multiply and divide fractions.
Exponents & Radicals Ready
Compute powers, square roots and nth roots with short solutions.
Simplify Expressions Ready
Simplify algebraic expressions and show every transformation step.
Trigonometry
Trigonometric Values Ready
Find sin, cos, tan of an angle and convert degrees to radians.
Trigonometric Equations Ready
Solve basic sin, cos, tan equations on a given interval.
Trigonometric Function Graphs Ready
Plot y = a·sin(bx + c) + d with sliders and see the period and asymptotes.
Unit Circle Ready
Drag point M around the unit circle to see cos, sin, tan, cot and the quadrant.
Trigonometric Identities Ready
Given sin, cos, tan or cot and the quadrant, find the remaining values.
Triangle Solver Ready
Law of sines and cosines: find sides, angles, area, R, r and altitudes.
Calculus
Derivative Calculator Ready
Differentiate a function and state the rules used.
Antiderivative & Integral Ready
Find antiderivatives and evaluate definite integrals step by step.
Limit Calculator Ready
Evaluate limits at a point or as x approaches infinity.
Function Analysis Ready
Study the domain, monotonicity, extrema and graph of a function.
Function Min – Max Ready
Find the maximum and minimum values of a function on [a, b].
Area & Volume by Integration Ready
Compute areas of plane regions and volumes of solids of revolution.
Probability & Statistics
Classical Probability Ready
Compute probability as favorable outcomes over the size of the sample space.
Permutations & Combinations Ready
Compute permutations, k-permutations and combinations with formulas.
Binomial Theorem Ready
Expand (ax + b)^n term by term and find the coefficient of x^k.
Mean, Median, Mode Ready
Compute the summary statistics of a data set.
Variance & Standard Deviation Ready
Measure how spread out a data sample is around its mean.
Discrete Random Variables Ready
Compute E(X), V(X) and the standard deviation from a distribution table.
Geometry
Triangle Area Ready
Find the area from base and height, three sides or an included angle.
Perimeter & Area Ready
Perimeter and area of rectangles, squares, trapezoids, parallelograms and rhombuses.
Pythagorean Theorem Ready
Find a leg or the hypotenuse of a right triangle.
Circle Calculator Ready
Compute the circumference and area of a circle and the arc length.
Volume of Solids Ready
Volume of cubes, boxes, pyramids, prisms, cylinders and cones.
Sphere & Ball Ready
Surface area and volume of a sphere, plus sphere equations in Oxyz.
Vectors & Cross Product (Oxyz) Ready
Length, dot product, angle and cross product of two vectors in 3D space.
Planes & Distance (Oxyz) Ready
Write plane equations and find the distance from a point to a plane.
Financial Math
Percentage Calculator Ready
Find what percent one number is of another.
Simple Interest Ready
Compute the interest earned and the total amount with simple interest.
Compound Interest Ready
Compute the balance after several periods with interest compounded.
VAT Calculator Ready
Compute the tax amount and final price from a given VAT rate.
Unit Converter Ready
Convert units of length, mass, area and temperature.
Loan Calculator Ready
Monthly car or home loan payments on a declining balance with a full repayment schedule.
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ATMath is a comprehensive resource of free online calculators and step-by-step solvers engineered with precision. Here, you will find practical tools for mathematics (algebra, calculus, trigonometry, fractions, geometry, statistics) as well as finance and everyday life (loans, compound interest, percentages, VAT taxes, and unit conversions). Many calculators display step-by-step formulas and calculations to help you understand and verify results easily. If you don't find what you need, we are always happy to consider requests for new calculators or additional features. Please Contact us to submit a Calculator Request or Suggestion.
Please cite this content or calculator as follows:
ATMath "Online Calculators" at https://atmath.org/en/ from ATMath.org