Math & statistics calculators

0-9

• 2D geometry calculator – area & perimeter of shapes | CalcBE
  Compute area and perimeter for rectangles, circles, triangles, trapezoids and regular polygons from side lengths, radii or heights, with formulas shown for homework and quick design checks.
• 2D graphing calculator – plot and intersect functions | CalcBE
  Plot up to three functions, find intercepts, intersections and extrema numerically, and explore the graph with zoom, pan, shareable URLs and clear step-by-step logs.
• 3D Geometry Calculator (Sphere, Cylinder, Cone, Prism) | CalcBE
  Compute volume and surface area for spheres, cylinders, cones, rectangular and regular prisms—with example inputs, step-by-step formulas, and a shareable result link.

A

• Acid–base titration curve calculator – pH vs volume with worked steps | CalcBE
  Plot strong and weak acid–base titration curves, highlight buffer regions and equivalence points, and review the Henderson–Hasselbalch or hydrolysis steps behind each segment.
• Algebra simplifier with colors for like terms | CalcBE
  Expand with distribution, color-match like terms, and simplify step by step. See sign flips, teacher mode, shareable URL, LaTeX copy, and SVG export all in your browser.
• APR↔EAR rate converter (monthly, daily & effective annual) | CalcBE
  Convert nominal APR into equivalent monthly, daily and effective annual rate (EAR), or reverse from periodic rates back to APR so you can compare loans, credit cards and savings offers. Free, browser-based interest ra…
• Arithmetic & Geometric Sequence Calculator | CalcBE
  Compute the nth term, partial sum, common difference or ratio, and number of terms for arithmetic and geometric sequences. Shows formulas, steps, term previews, and infinite geometric series when |r| < 1.

B

• Base Converter & Bitwise Toolkit (Bin/Oct/Dec/Hex) | CalcBE
  Convert between binary, octal, decimal, and hexadecimal, and run AND/OR/XOR/NOT and bit shifts—then copy a shareable result link.
• Bell numbers table with Stirling relations | CalcBE
  Generate a Bell numbers table B(n) and confirm the relation B(n)=ΣS(n,k). Includes exact BigInt or modulo mode, CSV/TSV export, Stirling tabs, and shareable URLs.
• Birthday paradox (collision probability) calculator | CalcBE
  Calculate the birthday paradox collision probability with exact math + a Monte Carlo simulator. Get P(collision), P(no collision), a Poisson approximation with error, and the required sample size n for a target probab…
• BMR & TDEE calculator – daily calorie needs and energy use | CalcBE
  Estimate your basal metabolic rate and total daily energy expenditure with the Mifflin-St Jeor equation. Enter your age, sex, height, weight and activity level to see maintenance calories.
• Buffer pH (Henderson–Hasselbalch) with steps — design, additions, capacity | CalcBE
  Compute buffer pH with the Henderson–Hasselbalch equation, design mixtures for a target pH, and model strong acid/base additions with buffer capacity and step-by-step logs.

C

• Card deck shuffler – shuffle & draw cards | CalcBE
  Shuffle a deck of playing cards and draw or deal cards in your browser. Choose decks and jokers, then copy or download results. Share settings only (no history in URLs by default).
• Catalan number explorer - Dyck paths & trees | CalcBE
  Explore Catalan numbers C_n with exact BigInt or modulo tables, then enumerate or uniformly sample Dyck words, Dyck paths, and full binary trees. Export CSV or share URLs with seeds for reproducible examples.
• CI & Hypothesis Test Wizard (Means & Proportions) | CalcBE
  Build confidence intervals and hypothesis tests for means and proportions. Supports Welch, paired, Wilson, Newcombe, and visualises p-values.
• Circular & necklace permutation calculator | CalcBE
  Compute circular permutations (rotation counted as the same) and necklace/bracelet permutations (rotation + reflection counted as the same) from n. Shows exact values, digit count, formula, short steps, and a shareabl…
• Complex Number Calculator — a+bi ↔ polar with steps | CalcBE
  Convert between a+bi and r∠θ, perform complex addition, subtraction, multiplication, division, powers, and list n-th roots with a live Argand plot and step-by-step breakdown.
• Conic sections calculator – standard form & focus | CalcBE
  Classify a general quadratic, rotate to eliminate xy, complete the square to standard form, and visualize focus, directrix, and asymptotes. LaTeX/URL/CSV ready.
• Coordinate geometry calculator – distance & lines | CalcBE
  Compute distance, midpoint, slope, line equations, circles, and intersections with full working shown beside the results and a live coordinate plane diagram.
• Coupon collector calculator – expected draws | CalcBE
  Calculate the coupon collector problem: expected draws to collect all, t50/t90/t99 completion counts, and P(T<=t). Switch to weighted rarities, run seeded Monte Carlo simulations, and share URLs or CSV.
• Credit Card Minimum Payment Simulator
  Estimate months to payoff and total interest by entering balance, APR, and your card’s minimum payment policy (rate and/or fixed amount). Shareable URL included.

D

• Date & Time Calculators: Days Between, Business Days, Time Zones | CalcBE
  Calculate days between dates, add/subtract time, count business days, and convert time zones. Browser-only.
• Debt-to-Income (DTI) Calculator
  Enter monthly income and monthly debt payments to compute your DTI percentage and a quick category label. Shareable URL and copy results included.
• Descriptive Statistics + Box Plot & Histogram (with steps) | CalcBE
  Paste a dataset or upload CSV/TSV to review descriptive statistics, histogram, box plot, outlier counts, trimmed mean, CSV export, LaTeX summary, and documented steps.
• Dice Roller for d4-d100 rolls with PNG sharing | CalcBE
  Roll d4-d100 with quick buttons or notation like 2d6+3, see totals and breakdowns, keep history, and share text or PNG cards directly from your browser.
• Dice stats – success odds & distribution calculator | CalcBE
  Compute success probabilities, exact or simulated distributions, mean/SD, and top modes for NdS +/- K dice notation. Auto switches Exact/Sim, shows histograms, and shares as text, PNG, or URL entirely in the browser.
• Differentiation Calculator (steps, tangents, numeric) | CalcBE
  Compute symbolic and numeric derivatives for single-variable, parametric, implicit, and partial derivatives. See Richardson extrapolation steps and tangent lines instantly for teaching and study.
• Dimensional analysis & unit consistency checker (with steps) | CalcBE
  Parse compound units, verify equation consistency, and generate Buckingham Π groups with step-by-step logs, CSV export, and shareable URLs.
• Distribution calculator – binomial, Poisson & t | CalcBE
  Compute PMF/PDF, CDF, quantiles, and exact confidence intervals for binomial, Poisson, Student's t, and chi-square distributions with step-by-step explanations, graphs, CSV, LaTeX, and shareable URLs.

E

• Eigenvalues & Eigenvectors (2x2, 3x3) — with steps | CalcBE
  Compute eigenvalues, eigenvectors, residuals, and multiplicities for 2x2 and 3x3 matrices with analytic, rational-root, and QR iteration explanations.
• Empirical & molecular formula calculator online | CalcBE
  Find empirical and molecular formulas from percent composition, combustion data or hydrates with clear, step-by-step working for lab and homework.
• Error propagation calculator – sums, products & powers | CalcBE
  Propagate uncertainty for sums, products, powers and general functions using gradient×covariance steps, correlation options and Monte Carlo checks, with templates for common lab calculations.

F

• Fast, multilingual calculators | CalcBE
  Search CalcBE calculators across all languages. Do quick math on the home calculator or open tools for finance, unit conversion, date & time and more.
• First-order ODEs (Separable & Linear) + Direction Field — with steps | CalcBE
  Visualise separable and linear first-order ODEs with slope fields, Simpson integrals, integrating factors, numeric inversion, RK4 checks, CSV export, and shareable URLs.
• Fraction Calculator (Reduce, Mixed Numbers, Common Denominators) | CalcBE
  Enter mixed or improper fractions as-is, perform addition, subtraction, multiplication, or division, and instantly view reduced results, mixed-number forms.
• Fraction Simplifier & Mixed Number Converter (Steps & Visuals) | CalcBE
  Reduce any fraction, convert between improper and mixed numbers, and review Euclidean GCD steps with pie and number line visuals for lessons.
• Function Transformations Explorer (Translate, Scale, Reflect) | CalcBE
  Adjust a, b, h and v in y = a·f(b(x−h)) + v to see how shifts, stretches and reflections change graphs, then compare the original and transformed curves side by side.

G

• GCD & LCM calculator – greatest common divisor tool | CalcBE
  Compute the GCD and LCM for up to 32 integers using Euclid’s algorithm and successive reduction. Paste values and copy a shareable result link.
• GCD & LCM Calculator (with Steps) — Extended Euclid & Ladder Method | CalcBE
  Follow gcd and lcm with ladder (division) steps and Euclidean a = q·b + r logs, plus extended Euclid back substitution and teacher notes.
• Geometry & Graph Tools: Triangles, Vectors, 2D/3D | CalcBE
  Solve triangles, work with vectors, and use graph helpers like graph paper and number lines. Browser-only geometry tools.

H

• Histogram & cumulative frequency from grouped data | CalcBE
  Enter grouped or raw data to build a derived frequency table, histogram (frequency or frequency density), and cumulative frequency ogive. Detect unequal widths, highlight modal/median classes, copy a shareable URL, an…
• Hypergeometric calculator (without replacement) | CalcBE
  Compute hypergeometric probabilities (without replacement): P(X=k), tails, and ranges. PMF chart/table, seeded simulation, share URL, and CSV.

I

• Inclusion–Exclusion — at least one & none | CalcBE
  Compute |A∪B∪…| (“at least one”) for 2–4 sets. For 2–3 sets you can input Venn regions (easy) or intersection sizes. Optionally add N to get “none”, probabilities, exactly 1/2/… counts, and a shareable URL.
• Inequality Solver (1 & 2 Variable) — Steps & Graphs | CalcBE
  Solve linear, compound, absolute value, quadratic, and rational inequalities with shareable steps, plus half-plane and system visuals that shade the feasible region.
• Integration calculator – numeric approximations and step-by-step explanations | CalcBE
  Compute definite integrals with trapezoid, Simpson, adaptive and Gaussian methods while logging nodes, weights and error estimates. Includes basic antiderivatives and applied examples.
• Inverse proportion y=k/x explorer | signs & k | CalcBE
  Explore the inverse proportion y=k/x with xy=k held constant. Sync equation, table, and graph, highlight quadrants by sign, show asymptotes, tracer, table consistency checks, shareable URL, SVG/CSV exports, and teache…
• Invoice net ↔ gross calculator – add or remove VAT on totals | CalcBE
  Convert net ↔ gross invoice amounts with a VAT rate. Choose whether the entered amount is net or VAT-inclusive, pick the rate and rounding, and share results with a URL or CSV.

K

• Kinematics: SUVAT / Projectile / Free Fall (steps) | CalcBE
  Solve SUVAT unknowns, 2D projectile motion and free-fall on one page. Get step-by-step logs, quadratic root reasoning, shareable URLs, plots, and teacher notes.

L

• LaTeX Equation Editor — Live MathJax, palette, templates, history | CalcBE
  A premium LaTeX equation editor with live MathJax preview, caret-aware palette, templates, history, and one-tap copy/share. Tailored for math, physics, and engineering workflows.
• Lens & Mirror Equation — with steps and ray diagram | CalcBE
  Compute image distance, magnification, and principal rays for thin lenses or mirrors with a live How it's calculated log, CSV export, and shareable links.
• Limiting reagent, theoretical yield, percent yield & purity — with steps
  Step-by-step chemistry calculator auto-balances reactions, converts g/mol/M×L with purity adjustments, and reveals limiting reagents, theoretical yield, percent yield, and reactant purity.
• Limits Explorer — One-sided limits & numeric L'Hôpital | CalcBE
  Diagnose indeterminate forms, apply numeric L'Hôpital, sample one-sided limits, and visualise the graph near the approach point. Shareable URL, LaTeX copy, and CSV export included.
• Linear equation solver with both-side steps | CalcBE
  Linear equation solver that logs each same-operation step. Clear denominators, handle fractions and parentheses, verify the answer, and share URLs or LaTeX/SVG from the browser.
• Linear function y=ax+b explorer | formula & graph | CalcBE
  Explore y=ax+b by syncing formula, table, and graph. See slope triangles and difference tables, infer a and b from two points or a data table, drag anchors, share URLs, and export SVG/CSV with a teacher mode.
• Linear Regression & Correlation — Scatter, OLS/WLS, R² (with steps) | CalcBE
  Paste x,y[,w] data or upload a CSV to fit OLS, WLS or Theil–Sen regression. See the fitted line, 95% bands, residual plots and key tests on one interactive chart.
• Linear systems solver – 2×2 and 3×3 equation systems with step-by-step working | CalcBE
  Solve 2×2 and 3×3 systems of linear equations with Gaussian elimination (RREF), classify solutions, show parametric forms, residuals, elimination steps, and optional 2×2 Cramer's rule.
• Linear Systems Solver with RREF Steps (2×2 & 3×3) | CalcBE
  Reduce 2×2 and 3×3 linear systems with Gaussian or Gauss-Jordan elimination, log every row operation, keep exact fractional answers, and share matrices in one click.
• Loan & Mortgage Calculators: Payment, Schedule, Affordability | CalcBE
  Estimate payments, compare amortization schedules, and check affordability (DTI) with browser-only loan & mortgage calculators.
• Log Laws Transformer (with steps) — expand, condense, change of base | CalcBE
  Expand, condense, and evaluate logarithms with shareable steps. Convert between bases (log10 and ln), copy LaTeX, and guide lessons with teacher mode.
• Long addition & subtraction (decimal carry/borrow) | CalcBE
  See column addition or subtraction with decimals, carry, and borrow explained per digit. Copy a shareable URL or LaTeX, switch to teacher mode, and keep trailing zeros if you need them.
• Long division calculator – step-by-step quotient and remainder working | CalcBE
  Enter a dividend and divisor to see the quotient, remainder, and a school-style long division layout with step-by-step explanations. Works with decimals and repeating decimals.
• Lottery odds calculator – tiers & expected value | CalcBE
  Compute lottery odds for lotto-style games (main + bonus) and 2-pool games. Instantly see tier-by-tier probabilities, total win odds, odds inverse (1 in X), multi-ticket “at least one win”, target-ticket counts (50/90…

M

• Matrix Calculator — RREF / Solve Ax=b / Inverse / Determinant (with steps) | CalcBE
  Compute RREF, solve Ax=b, find the inverse, determinant, rank, null space, row and column spaces with detailed elimination logs. Supports exact fractions, decimals, shareable URLs, and LaTeX export.
• Mean and Standard Deviation Calculator (Population vs Sample) | CalcBE
  Paste or type your dataset to compute count, mean, variance, and standard deviation (population N and sample N‑1), then copy a shareable result link.
• Modular arithmetic calculator – GCD, inverse & CRT | CalcBE
  Compute extended GCD, modular inverses, fast power, CRT and linear congruences with BigInt precision. Review every iteration in a How it's calculated table, export CSV and share setups by URL.
• Multiset permutation & anagram count calculator | CalcBE
  Count distinct permutations of strings with repeated characters using multinomial coefficients. Shows BigInt exact results, digit count, scientific notation, steps, random examples (small n), and shareable URLs.

N

• Normal Distribution Calculator — PDF/CDF/Quantile & Z-Score | CalcBE
  Enter a mean and standard deviation to compute normal PDF, CDF, tail probabilities, quantiles and z-scores, with a shaded curve and step-by-step explanations ideal for teaching.

P

• Partial fractions calculator – decomposing rational expressions with steps | CalcBE
  Decompose rational functions into partial fractions with polynomial long division, Durand-Kerner factorisation, Gaussian elimination, LaTeX, CSV, and shareable URLs.
• Partial pressure & gas mixing calculator – Dalton's law | CalcBE
  Apply Dalton's law for gas mixtures, run two-tank isothermal mixing and wet-gas corrections, and compare ideal vs van der Waals pressure with clear logs, CSV export and shareable URLs.
• Pascal's Triangle & Binomial Expansion (with steps) | CalcBE
  Generate Pascal rows, combinations, and binomial expansions with BigInt accuracy. Watch How it's calculated, export CSV logs, inspect row identities, and share lesson-ready URLs.
• Password generator – strong secure random passwords | CalcBE
  Generate strong random passwords in your browser with crypto.getRandomValues. Exclude ambiguous characters, meet rules, copy or download. Share settings only (no passwords in URLs).
• Percentage Calculator (X% of Y, increase/decrease) | CalcBE
  Work out X% of Y, what percent one number is of another, and the new value after a percent increase or decrease. You can also copy a link to the result.
• Permutation & Combination Calculator (nPr, nCr) — with Steps | CalcBE
  Compute permutations nPr, combinations nCr, and factorial n! with exact BigInt results, scientific-notation approximations, step logs, teacher notes, and shareable URLs.
• Permutation test – exact p-value for A/B and paired | CalcBE
  Run a permutation (randomization) test for two independent groups or paired samples. Visualize the null distribution and download a JSON/CSV report — all in your browser.
• Poker odds calculator - hands, outs, Hold'em odds | CalcBE
  Calculate poker hand probabilities, outs hit chances for turn/river, and Texas Hold'em hand distributions. Includes exact enumeration when fast, Monte Carlo simulation with fixed seeds, shareable URLs, and CSV exports.
• Prime factorization calculator – primes, divisors | CalcBE
  Factor any positive integer into primes and see exponents, divisor counts and primality. Copy a shareable result link for homework or quick checks.
• Prime Factorization Calculator | Miller–Rabin & Pollard Rho | CalcBE
  Factor integers fast with Miller–Rabin and Pollard Rho. See canonical form, steps, and arithmetic functions like τ(n), σ(n), φ(n), μ(n), rad(n).
• Prime Factorization with Steps & Factor Tree | τ(n), σ(n), φ(n) | CalcBE
  Factor any integer into primes, see every trial division step, compute τ(n), σ(n), φ(n), and draw the factor tree. Optional second integer shows gcd/lcm via exponents.
• Probability Simulator — coin, dice, roulette (theory vs empirical, with steps) | CalcBE
  Simulate coin tosses, dice rolls and roulette spins with a fixed seed to compare theoretical and empirical probabilities. Inspect confidence intervals, convergence charts and shareable runs.
• Probability tree & 2×2 table — AND/OR & complement | CalcBE
  Probability tree & 2×2 table tool for AND/OR/NOT and complements. Highlights matching paths/cells and explains products, sums, and 1−P with steps. Copy a shareable URL, SVG, or LaTeX.
• Pythagorean theorem calculator | Diagram & area model | CalcBE
  Solve and visualize a²+b²=c² with a right-triangle diagram and area model. Find any side, check a triangle, or measure distance with exact radicals, steps, shareable URL, LaTeX, and SVG.

Q

• Quadratic & polynomial equation solver – worked steps and graph insights | CalcBE
  Solve quadratic and low-degree polynomial equations with exact and decimal roots, discriminant classification, factorization, completing the square and a graph, all with worked steps.
• Quadratic equation solver – roots, discriminant and vertex form | CalcBE
  Solve ax² + bx + c = 0 and see real or complex roots, the discriminant, vertex form and a quick graph. Automatically switches to the linear case when a = 0.

R

• Random & Lotteries: Pickers, Dice, Probability | CalcBE
  Find the right random tool fast: weighted random picker, random picker, dice tools, plus probability calculators. Browser-only, no sign-in.
• Random CSV generator – test data & schema JSON | CalcBE
  Generate random CSV test data in your browser. Define columns, preview rows, then download CSV and schema JSON — no uploads and share settings-only URLs.
• Random Date & Time Generator – random datetime/timestamp | CalcBE
  Generate random dates, times, and datetimes in your browser. Choose a range, weekdays, exclusions, time windows, and steps. Copy/download results and share settings-only URLs.
• Random Number Generator | Integers, decimals, seeds
  Generate random integers or decimals in your browser with optional seeds, unique values, and copyable results. Everything runs locally without sending data to the server.
• Random Picker | Draw winners without repeats
  Pick one or more random items from a list in your browser. Great for lotteries, giveaways, and classroom activities. Everything runs locally without sending data to the server.
• Randomness beacon verifier – paste a beacon to verify draws | CalcBE
  Paste a public beacon value to verify a deterministic draw or shuffle. Create a commit hash, reproduce results, and download JSON/CSV/PNG — runs locally.
• Randomness tests – chi-square, runs, ACF, JB | CalcBE
  Run chi-square, runs, autocorrelation, and Jarque–Bera on bit or number sequences. Visualize results and download a report—runs locally in your browser.
• Ratio, Proportion & Percentage Solver (Step-by-Step) | CalcBE
  Simplify ratios, solve proportions, split totals, compare percentages and convert map scales with transparent step-by-step working, teacher mode, shareable links, and LaTeX output.
• RC / RL / RLC Calculator — time constant, cutoff, resonance & phase (with steps) | CalcBE
  Analyse RC, RL, and RLC networks with step-by-step formulas. Compute time constants, divider gain, resonance, and equivalent series or parallel values with shareable results.
• Repetition calculator – n^r & nHr (multichoose) with steps | CalcBE
  Calculate permutations with repetition (n^r) and combinations with repetition (nHr = C(n+r-1,r)) with Exact BigInt results or fast scientific-notation approximations. Includes step logs, teacher mode, and shareable URLs.
• Riemann Sums Calculator | Left/Right/Trapezoid/Simpson | CalcBE
  Visualise left/right, midpoint, trapezoid and Simpson sums for f(x), compare with an adaptive Simpson reference, and export CSV or share a link.
• Rounding & error bands | Intermediate vs final | CalcBE
  Round any number, highlight the digit you inspect, and see the error band on a number line. Compare intermediate vs final rounding with the same settings, copy a shareable URL or LaTeX, and save the SVG for class use.

S

• Sampling & Bootstrap — CLT Explorer (with steps) | CalcBE
  Simulate samples from common distributions, bootstrap means or proportions, and see CLT histograms with step-by-step explanations for classroom demos.
• Scientific calculator – trig, logs, powers and degree / radian angle modes | CalcBE
  Run trig, logs, exponents, and factorials with Deg/Rad modes, keyboard input, memory, and a shareable URL that preserves your expression and settings.
• Seating Chart Generator (Random) — Classroom & Tables | CalcBE
  Generate a random seating chart for classrooms or tables. Add optional constraints like fixed seats and avoid-adjacency pairs, then print or download as CSV/JSON/HTML.
• Sector arc length, area & angle calculator | CalcBE
  Solve a sector’s arc length l, area A, central angle θ, or radius r with units and a live diagram. See the θ/360 ratio, validation against 2πr and πr², example chips, teacher mode, shareable URL, LaTeX copy, and SVG e…
• Sequences & Series (Arithmetic / Geometric) — terms & sums with steps | CalcBE
  Compute arithmetic and geometric sequences with step-by-step logs: nth terms, partial sums, solving for n or k, two-point inference, and table generation with shareable outputs.
• Shuffle bias comparison – naive vs Fisher–Yates | CalcBE
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• Signed number line calculator & sign rules | CalcBE
  Add, subtract, multiply, and divide signed numbers with a number-line animation for plus/minus moves. See the sign table for × and ÷, play the steps, copy LaTeX or the result, download the SVG line, and share a URL wi…
• Similarity ratio calculator – side, area, volume | CalcBE
  Enter a similarity ratio (small:large) to see side/perimeter, area (square), and volume (cube) ratios with scale factors. Solve unknown values, infer from area/volume via √/∛, and share 2D/3D visuals, steps, SVG, and…
• Simple Harmonic Motion (SHM) simulator — with steps and energy | CalcBE
  Simulate spring-mass simple harmonic motion with analytic, Euler-Cromer, or RK4 steps, inspect omega, period, energy, shareable logs, plots, and CSV exports.
• Simultaneous equations solver with graph view | CalcBE
  Solve simultaneous linear equations with elimination, substitution, and graph views. Fractions and decimals are normalized, no solution or infinite solution is classified, and you can copy a shareable URL, LaTeX, and…
• Square root simplifier with factor tree & steps | CalcBE
  Simplify square roots to a√b with factor tree, pairing highlights, and steps. Show decimals with square bounds, load examples, copy LaTeX, and export SVG.
• Standard calculator – basic arithmetic with history tape and memory keys | CalcBE
  Perform four‑function math with parentheses and percent, a running tape, and memory slots—fully keyboard accessible, with a shareable result link.
• Stars and bars calculator – count integer solutions | CalcBE
  Count the number of integer solutions to x1+…+xk=n with conditions (xi≥0, xi≥1, or xi≥ai), also known as combinations with repetition (multichoose). Shows the formula (C(n+k-1,k-1), etc.), short steps, examples, and a…
• Stirling numbers table (first & second kind) | CalcBE
  Generate tables for Stirling numbers of the first and second kind plus Bell numbers. Inspect S(n,k), s(n,k), c(n,k), meanings, recurrences, exact BigInt or modulo values, CSV/TSV export, and shareable URLs.
• Stochastic process visualizer – random walk & Markov chain | CalcBE
  Visualize random walks (1D/2D) and Markov chains from a transition matrix. See trajectories, MSD, and stationary distribution, then download results.
• Study & Classroom Tools: Worksheets, Graph Paper, GPA | CalcBE
  Classroom-ready tools: worksheet generator, graph paper, quick charts, plus GPA and stats calculators. Browser-only.
• Surface & volume nets (prism/pyramid/cylinder/cone/sphere) | CalcBE
  Compute surface area and volume for prisms, pyramids, cylinders, cones, and spheres with synced 3D sketches and nets. See lateral vs base breakdowns, slant height, units, teacher mode, examples, shareable URLs, and SV…

T

• Tax Calculators: VAT, GST, Income Tax, Net ↔ Gross | CalcBE
  Quick tax calculators for VAT/GST, net↔gross conversions, and income tax. Browser-only, no sign-up.
• Taylor & Maclaurin Series — with steps and graphs | CalcBE
  Build Taylor and Maclaurin polynomials P_n(x) with symbolic derivatives or fallback fits, then compare f and P_n on one graph. Review error summaries and step-by-step working for each example.
• Team generator – random teams & groups | CalcBE
  Split a list of names into random teams or groups in your browser. Choose number of teams or team size, add simple constraints, then copy or download results. Share settings only (no names in URLs by default).
• Topics & Collections | CalcBE.com
  Browse CalcBE topic collections to quickly find the right calculator or tool (random draws, PDFs, loans, taxes, and more).
• Triangle Solver — Law of Sines/Cosines (SSA ambiguous) | CalcBE
  Solve triangles with SSS, SAS, ASA/AAS, and the ambiguous SSA case. See step-by-step formulas, switch degree/radian output, pick decimal places, and view an annotated diagram.
• Triangle Solver (SSS / SAS / ASA, Area & Circumradius) | CalcBE
  Select the known combination (three sides, two sides plus the included angle, or two angles plus the included side) and this tool will compute the remaining.
• TRPG dice check – d20 advantage/disadvantage and dice pool successes | CalcBE
  Run quick d20 checks with advantage or disadvantage, compare against a DC, and roll dice pools to count successes directly in your browser. Keep rolls local, save history, and share logs as text, PNG cards, or prefill…
• Truth Table & Logic Evaluator — DNF/CNF Simplifier | CalcBE
  Build Boolean truth tables up to 10 variables, export canonical DNF/CNF, simplify with Karnaugh or Quine–McCluskey, and share CSV or URL with How it’s calculated steps.

U

• Unit Circle & Trig Explorer — amplitude, period & phase | CalcBE
  Explore y = A·f(bx+φ)+D for sine, cosine and tangent, syncing the unit circle and graph as you change amplitude, period and phase. Export sample values or share an interactive state.

V

• Vector Calculator — dot/cross, projection, angle, area, triple (with steps) | CalcBE
  Compute norms, dot, cross (2D/3D), projection, angle, areas, and triple product with step-by-step logs. 2D diagram, shareable URL, LaTeX and CSV export.
• Verifiable random draw (commit-reveal) – auditable picker | CalcBE
  Run a verifiable random draw using a commit-reveal scheme. Publish a commitment hash first, reveal the seed later, and let anyone reproduce and verify the results—runs locally in your browser.

W

• Weighted Random Picker – random choice with weights | CalcBE
  Pick random items with weights (probability ratios). Use an optional seed for reproducible draws and share your setup via URL—runs locally in your browser.
• Word Problem Wizard — percent, ratio, speed & concentration | CalcBE
  Solve common word problems by choosing a template and entering values with units. Get diagrams, formulas, step-by-step hints, and checks for percent, ratio, speed, and salt-solution concentration.