Ultimate Calculator Suite
A complete light-first mathematics and science workspace with exact values, line-by-line mistake diagnosis, inference, differential equations, physics and clear formula-to-answer working.
More functions & constants
Graphing Calculator
Plot up to five functions of x. Trigonometric functions follow the selected DEG/RAD mode.
Unit Converter
Convert measurement, science, computing and everyday units instantly.
Statistics Lab
Paste raw data and instantly calculate descriptive statistics, quartiles and a visual distribution.
Invalid text is ignored. At least one valid number is required.
Algebra Lab
Solve simultaneous equations, analyse sequences, work with matrices and convert number bases.
Simultaneous Equations
Solve a₁x + b₁y = c₁ and a₂x + b₂y = c₂.
Sequence Analyser
2 × 2 Matrix Lab
Number Base Converter
Geometry Lab
Calculate measures with useful formula working for plane geometry, solids and coordinate geometry.
Circle Calculator
Triangle from Three Sides
3D Solid Calculator
Coordinate Geometry
Calculus Lab
Estimate derivatives, tangent lines, definite integrals, limits and roots using dependable numerical methods.
Derivative & Tangent
Definite Integral
Limit Explorer
Equation Root Finder
Probability Lab
Work with binomial and normal distributions, expected values, combinations and permutations.
Binomial Distribution
Normal Distribution
Expected Value
Combinatorics
Vector Lab
Calculate vector operations, magnitudes, angles, projections and equations of lines in vector form.
Vector Operations
Vector Line
Create the line through points A and B.
Formula Library
Find core Mathematics, Physics, Statistics and Finance formulae, understand the symbols and send editable worked examples directly to the calculator.
Number Theory Lab
Explore primes, factorisation, significant figures, standard form, ratios and recurring decimals.
Prime & Factor Analyser
Standard Form & Significant Figures
Ratio & Proportion
Recurring Decimal to Fraction
For 0.16, enter whole = 0, non-repeating = 1, repeating = 6.
Finance Lab
Calculate interest, loan repayments, savings timelines and reducing-balance depreciation without sending financial data anywhere.
Interest & Growth
Loan Repayment
Savings Goal
Reducing-Balance Depreciation
Trigonometry Lab
Solve non-right-angled triangles, bearings, reference angles and sinusoidal model features.
General Triangle Solver
Enter any valid SSS, SAS, ASA/AAS or SSA set. Angles are in degrees.
Bearing & Distance
Coordinates use eastings x and northings y.
Reference Angle Explorer
Sinusoidal Model
For y = A sin(Bx + C) + D.
Study Mode
Run a timed session, keep a private scratchpad, practise generated questions and track your momentum.
Focus Timer
Session Dashboard
Private Scratchpad
Session Goals
Practice Generator
Complex Numbers Lab
Calculate with a + bi, convert polar forms, find powers and roots, and visualise values on an Argand diagram.
Complex Arithmetic
Rectangular ↔ Polar
Powers & nth Roots
Argand Diagram
z₁, z₂ and the latest arithmetic result are plotted automatically.
Polynomial Lab
Analyse coefficients, find real and complex roots, evaluate functions, differentiate, integrate and divide polynomials.
Polynomial Analyser & Root Finder
Enter coefficients from the highest power to the constant term. Example: 1, −6, 11, −6 represents x³ − 6x² + 11x − 6.
Polynomial Division
Factor Theorem Check
Value Table
Regression & Correlation Lab
Fit linear, quadratic or exponential models, measure correlation, inspect residual error and predict values.
Enter matching x and y lists. Exponential regression requires every y value to be positive.
Measurement & Uncertainty Lab
Calculate bounds, percentage error, propagated uncertainty and scientific-prefix conversions with clear working.
Upper & Lower Bounds
Experimental Error
Uncertainty Propagation
Uses the common maximum-uncertainty rules taught in school science: absolute uncertainties add for sums/differences; percentage uncertainties add for products/quotients.
SI Prefix Converter
Functions Lab
Evaluate, compose and invert functions, then explore transformed graphs and value tables with step-by-step working.
Function Evaluator
Function Composition
Inverse Linear Function
For f(x) = ax + b.
Transformation Explorer
Transform y = f(x) into y = a·f(b(x − h)) + k.
Equation & Inequality Lab
Solve linear equations, linear and quadratic inequalities, and absolute-value equations with interval notation and clear working.
Linear Equation
Solve ax + b = cx + d.
Linear Inequality
Solve ax + b ◇ c.
Quadratic Inequality
Solve ax² + bx + c ◇ 0 using roots and a sign chart.
Absolute-Value Equation
Solve |ax + b| = c.
Logs & Growth Lab
Solve exponential and logarithmic equations, model growth and decay, and calculate half-life or doubling time.
Exponential Equation
Solve A·b^(kx) = C.
Logarithm Solver
Solve log_b(x) = y and evaluate logarithms.
Growth & Decay Model
Half-Life / Doubling Time
Discrete Maths Lab
Work with sets, truth tables, Pascal’s triangle, counting methods and modular equations.
Set Operations
Truth Table
Use P, Q, NOT, AND, OR, XOR and =>.
Pascal’s Triangle
Counting Methods
Linear Congruence
Solve ax ≡ b (mod n).
Exam Coach
Generate targeted questions, submit answers, build a streak and reveal full working only when needed.
Your score stays private in this browser session.
Press “New question” to begin.
Advanced Linear Algebra Lab
Work with matrices up to 4 × 4, row reduction, inverses, ranks, systems and 2 × 2 eigenvalues.
Matrix Workbench
Conic Sections Lab
Analyse and graph circles, parabolas, ellipses and hyperbolas from standard-form parameters.
Conic Parameters
Axes scale automatically around the selected conic.
Distribution Lab+
Calculate Poisson, geometric and continuous-uniform probabilities with expectation and variance.
Poisson Distribution
Geometric Distribution
Continuous Uniform Distribution
Calculus Plus
Differentiate and integrate polynomials symbolically, build Taylor approximations, and calculate areas or arc lengths.
Polynomial Calculus
Taylor Approximation
Area Between Curves
Arc Length
Project Vault
Save named calculator projects, notes and all entered tool values locally in the student’s browser.
Save Current Work
Projects stay on this device unless exported.
Saved Projects
0 projectsExact Maths Lab
Simplify surds, rationalise denominators, calculate exact trigonometric values and perform fraction arithmetic with full working.
Surd Simplifier
Rationalise a Denominator
For p/(a + b√n).
Exact Trigonometric Values
Fraction Arithmetic
Statistical Inference Lab
Build confidence intervals, run hypothesis tests, analyse goodness of fit and identify possible outliers.
Confidence Interval for a Mean
One-Sample z Test
Chi-Square Goodness of Fit
Outlier & Five-Number Check
Differential Equations Lab
Approximate first-order initial-value problems with Euler or RK4 and explore exponential differential models.
Euler & Runge–Kutta Solver
Exponential Differential Model
Solve dy/dt = ky with y(0) = y₀.
Direction-Field Sampler
Physics Calculation Lab
Solve common mechanics and electricity calculations with units, formulas, substitutions and checks.
SUVAT Motion Solver
Leave exactly one required quantity blank. Use consistent SI units.
Projectile Motion
Energy & Momentum
Electricity Solver
Enter any two of V, I and R. Power is calculated automatically.
Mistake Detective Pro
Paste the question, final answer and working. The tutor audits each readable line, finds the earliest error, ranks likely misconceptions, gives staged hints and builds targeted repair practice.
Analyse the student’s method
Run a diagnosis to see the first wrong line, likely misconception, confidence score and a personalised fix.
Progressive help
Each hint becomes more specific. The first hint protects productive struggle; the final hint shows the correction.
Corrected working
Fix this exact weakness
Private mistake history
Precision & Rounding Audit
Magnitude & Reasonableness Audit
Check whether a claimed value fits a sensible interval and how far outside it lies.
Quick Maths Tools
Common calculations solved cleanly, with the useful working shown.
Quadratic Solver
Solve ax² + bx + c = 0
Percentage Calculator
Fraction Simplifier
Reduce a fraction and show its decimal.
GCD & LCM
Analyse two whole numbers.