Matematik & statistik

0-9

• 13th Month Pay — Non-taxable Cap (₱90,000)
  Kalkulahin ang di-natatayang bahagi (hanggang ₱90,000) at ang pasok sa buwis na bahagi ng 13th month at iba pang benepisyo. Edukasyonal lamang.
• 2D Geometry Calculator (Area & Perimeter: Rectangle, Circle, Triangle, Trapezoid, Regular Polygon)
  Quickly compute area and perimeter for rectangles, circles, triangles, trapezoids, and regular polygons.
• 2D Graphing Calculator — plot up to 3 functions with intersection & extrema steps
  Plot up to three functions, detect x-intercepts, intersections, and extrema via bisection and numeric derivatives. Includes zoom, pan, shareable URLs, and transparent step logs.
• 3D Geometry Calculator (Sphere, Cylinder, Cone, Prism)
  Compute volume and surface area for spheres, cylinders, cones, rectangular and regular prisms—with unit controls and a shareable result link.

A

• Alat Geometri & Graf: Segitiga, Vektor, 2D/3D | CalcBE
  Selesaikan segi tiga, bekerjasama dengan vektor dan gunakan pembantu graf seperti kertas graf dan garis nombor. Alat geometri pelayar sahaja.
• Alatan Belajar & Bilik Darjah: Lembaran Kerja, Kertas Graf, GPA | CalcBE
  Alat sedia bilik darjah: penjana lembaran kerja, kertas graf, carta pantas, serta kalkulator GPA dan statistik. Penyemak imbas sahaja.
• Anggaran PCB(Potongan Cukai Bulanan)— pendidikan
  Anggarkan PCB bulanan berdasarkan gaji kasar dan kadar anggaran (%). Untuk pendidikan/rujukan; kadar sebenar tertakluk kepada jadual LHDN.

B

• BMR & TDEE Calculator (Daily Calorie Needs)
  Estimate your basal metabolic rate and total daily energy expenditure with the Mifflin-St Jeor equation.
• BTW 21% — netto ↔ bruto(snelle omzetting)
  Reken prijs netto en bruto om bij BTW 21%. Deel resultaat met een link. Afronding: dichtstbijzijnd / omhoog / omlaag.
• BTW 9% — netto ↔ bruto(snelle omzetting)
  Reken prijs netto en bruto om bij BTW 9%. Deel resultaat met een link. Afronding: dichtstbijzijnd / omhoog / omlaag.
• Buffer pH (Henderson–Hasselbalch) with steps — design, additions, capacity
  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

• CI & Hypothesis Test Wizard (Means & Proportions)
  Build confidence intervals and hypothesis tests for means and proportions. Supports Welch, paired, Wilson, Newcombe, and visualises p-values.
• Complex Number Calculator — a+bi ↔ polar with steps
  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 Explorer — standard form, focus, directrix & eccentricity (with steps)
  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 Toolkit — distance, midpoint, slope, lines & circles (with steps)
  Compute distance, midpoint, slope, line equations, circles, and intersections with full working shown beside the results and a live coordinate plane diagram.

D

• Descriptive Statistics + Box Plot & Histogram (with steps)
  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.
• Differentiation Calculator (steps, tangents, numeric)
  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)
  Parse compound units, verify equation consistency, and generate Buckingham Π groups with step-by-step logs, CSV export, and shareable URLs.
• Distributions Pack Calculator — Binomial, Poisson, Student's t, Chi-square with Steps
  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
  Compute eigenvalues, eigenvectors, residuals, and multiplicities for 2x2 and 3x3 matrices with analytic, rational-root, and QR iteration explanations.
• Empirical & molecular formula calculator (with steps) — percent composition, combustion analysis, hydrates
  Four-mode chemistry calculator extracts empirical and molecular formulas from percent composition, combustion analysis, and hydrate data, with detailed How it's calculated logs, CSV export, and shareable URLs.

F

• First-order ODEs (Separable & Linear) + Direction Field — with steps
  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)
  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)
  Reduce any fraction, convert between improper and mixed numbers, and review Euclidean GCD steps with pie and number line visuals for lessons.
• Fungsi Transformasi Explorer (Terjemahan, Skala, Refleksi) | CalcBE
  Laraskan A, B, H dan V dalam Y = A · F (B (X -H)) + V untuk melihat bagaimana peralihan, membentang dan refleksi mengubah graf, kemudian bandingkan lengkung asal dan diubah bersebelahan.

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, Fraction/Ratio Simplifier
  Trace every a = q·b + r step, explore extended Euclid back substitution, simplify fractions or ratios, factor numbers, and share LaTeX-ready results with teacher notes.
• GPA ↔ Percentagem (educativo)
  Converta entre GPA e percentagem com fórmulas de exemplo (p.ex., % = 9,5 × GPA ou % = 10 × GPA). As instituições diferem — confirme a regra aplicável.

I

• Inequality Solver (1 & 2 Variable) — Steps & Graphs
  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 + steps)
  Compute definite integrals with trapezoid, Simpson, adaptive Simpson, Romberg, Gauss-Legendre, and Monte Carlo while logging nodes, weights, and error estimates. Includes basic indefinite forms, applications, and prob…
• Invois: Bersih ↔ Termasuk Cukai (SST)
  Tukar antara harga bersih dan harga termasuk cukai menggunakan kadar SST (cth. 8%). Pilih pembundaran dan mata wang. URL boleh dikongsi.
• IVA 13% — líquido ↔ bruto
  Converta rapidamente entre preço líquido e bruto a 13% de IVA. Arredondamento e partilha por link.
• IVA 23% — líquido ↔ bruto
  Converta rapidamente entre preço líquido e bruto a 23% de IVA. Arredondamento: ao mais próximo / para cima / para baixo. Partilha por link.
• IVA 6% — líquido ↔ bruto
  Converta rapidamente entre preço líquido e bruto a 6% de IVA. Arredondamento e partilha por link.
• IVA em Portugal — atalhos por alíquota (23% / 13% / 6%)
  Acesse rapidamente calculadoras de IVA por alíquota (23% / 13% / 6%) ou use a calculadora geral de IVA. Página útil para quem lida com preços em Portugal.

K

• Kalkulator Cukai: VAT, GST, Cukai Pendapatan, Bersih ↔ Kasar | CalcBE
  Kalkulator cukai pantas untuk VAT/GST, bersih↔penukaran kasar dan cukai pendapatan. Penyemak imbas sahaja, tiada pendaftaran.
• Kalkulator faktorisasi prima | Miller-Rabin + Pollard rho
  Faktorkan bilangan bulat dengan cepat memakai Miller-Rabin dan Pollard rho ditambah pembagian oleh prima kecil; tampilkan bentuk kanonis, langkah, serta fungsi aritmetika seperti τ(n), σ(n), φ(n), μ(n), rad(n).
• Kalkulator lengkung titrasi asid–bes (dengan langkah) — pH vs isipadu | CalcBE
  Plot lengkung titrasi asid–bes kuat/lemah, sorot zon penimbal dan titik kesetaraan, serta semak langkah Henderson–Hasselbalch atau hidrolisis dengan URL boleh kongsi dan eksport CSV.
• Kalkulator pemfaktoran perdana hingga 2^53−1 | CalcBE
  Faktorkan sebarang integer positif kepada faktor perdana dan lihat eksponen, bilangan pembahagi serta sama ada nombor itu perdana atau komposit. Salin pautan keputusan untuk kerja rumah atau semakan pantas dalam pelayar.
• Kalkulator penyebaran ralat — tambah, darab, kuasa & fungsi umum (dengan langkah)
  Sebarkan ketidakpastian y ± u_y dengan kaedah gradient×covariance, sokongan matriks korelasi, pengesahan Monte Carlo, dan templat tambah/darab/kuasa dengan parser ekspresi selamat.
• Kalkulator Peratus (X% daripada Y, berapa %, naik/turun) | CalcBE
  Kira X% daripada Y, berapa peratus X daripada Y dan kenaikan atau penurunan peratusan dengan satu kalkulator ringkas dalam talian. Hasil boleh disalin sebagai URL untuk dikongsi.
• Kalkulator Pinjaman & Gadai Janji: Pembayaran, Jadual, Mampu Mampu | CalcBE
  Anggarkan pembayaran, bandingkan jadual pelunasan dan semak kemampuan (DTI) dengan kalkulator pinjaman & gadai janji penyemak imbas sahaja.
• Kalkulator reagen terhad — hasil teori, % hasil & ketulenan | CalcBE
  Seimbangkan tindak balas (auto atau manual), tukar g/mol/M×L dengan pelarasan ketulenan dan lihat reagen terhad, hasil teori, % hasil serta ketulenan langkah demi langkah. CSV dan URL kongsi.
• Kalkulator Saintifik (Trig, Log, Mod Sudut)
  Jalankan trig, log, eksponen dan faktorial dengan mod sudut Deg/Rad, input papan kekunci, dan URL boleh kongsi yang menyimpan ekspresi serta tetapan anda.
• Kalkulator Taburan Normal — PDF/CDF/Kuantil & Skor Z
  Masukkan min dan sisihan piawai untuk mengira PDF, CDF (satu atau dua ekor), kuantil, kebarangkalian selang dan skor Z dengan penjelasan ringkas, lengkung normal berwarna, URL boleh kongsi dan nota pengajar.
• Kalkulator Tarikh & Masa: Antara Hari, Hari Perniagaan, Zon Masa | CalcBE
  Kira hari antara tarikh, tambah/tolak masa, kira hari perniagaan dan tukar zon waktu. Penyemak imbas sahaja.
• Kinematics: SUVAT / Projectile / Free Fall (steps)
  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

• Lakh/Crore ↔ Western (ตัวช่วยแปลงรูปแบบตัวเลขอินเดีย)
  แปลงตัวเลขระหว่างรูปแบบ Western (1,000,000) และรูปแบบอินเดีย (10,00,000; หน่วย Lakh/Crore) พร้อมแสดงค่าเป็น Lakh/Crore และจัดรูปแบบตามกลุ่มหลักแบบอินเดีย
• Lens & Mirror Equation — with steps and ray diagram
  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.
• Limits Explorer — One-sided limits & numeric L'Hôpital
  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 Regression & Correlation — Scatter, OLS/WLS, R² (with steps)
  Paste x,y[,w] or upload a CSV to fit OLS, WLS, or Theil–Sen. Visualize the regression line with 95% confidence/prediction bands, residuals, t/F tests, CSV export, LaTeX, and a transparent step log on one page.
• Linear Systems Solver with RREF Steps (2×2 & 3×3)
  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.
• Log Laws Transformer (with steps) — expand, condense, change of base
  Expand, condense, and evaluate logarithms with shareable steps. Convert between bases (log10 and ln), copy LaTeX, and guide lessons with teacher mode.
• Long Division & Multiplication Calculator (Step-by-Step)
  Walk through long division and long multiplication with decimals, repeating detection, and highlighted teaching steps. Share links or copy LaTeX instantly.

M

• Matrix Calculator — RREF / Solve Ax=b / Inverse / Determinant (with steps)
  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)
  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 Suite — Extended GCD / Inverse / Fast Power / CRT (step-by-step)
  Compute extended GCD, modular inverses, fast power, CRT and linear congruences with BigInt precision. Every iteration appears in How it’s calculated, plus CSV export and shareable URLs for teaching.

N

• Numerieke notatie：Nederlandse ↔ Westerse(1.234,56 ↔ 1,234.56)
  Zet getallen om tussen Nederlandse notatie(1.234,56)en Westerse(1,234.56)。Deel een link met de huidige waarde.

P

• Partial Fractions Calculator with Steps
  Decompose rational functions into partial fractions with polynomial long division, Durand-Kerner factorisation, Gaussian elimination, LaTeX, CSV, and shareable URLs.
• Partial pressure & gas mixing (with steps) — Dalton's law, two-tank mixing, wet gas, van der Waals
  Run Dalton’s law, two-tank isothermal mixing, and wet gas corrections with step-by-step logs. Compare van der Waals pressure, export CSV results, and share every setup by URL.
• Pascal's Triangle & Binomial Expansion (with steps)
  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.
• Penggelek Dadu untuk d4-d100 gulung dengan perkongsian PNG | CalcBE
  Gulung d4-d100 dengan butang pantas atau tatatanda seperti 2d6+3, lihat jumlah dan pecahan, simpan sejarah dan kongsi teks atau kad PNG terus daripada penyemak imbas anda.
• Penukar asas dan bitwise (bin/oct/dec/hex) | CalcBE
  Tukar nilai antara binari, oktal, perpuluhan dan heks, jalankan operasi AND/OR/XOR/NOT serta shift bit, kemudian salin pautan hasil yang boleh dikongsi.
• Penukar kadar APR↔EAR untuk pinjaman & simpanan | CalcBE
  Tukar APR nominal kepada kadar faedah bulanan, harian dan kadar tahunan efektif (EAR), atau sebaliknya daripada kadar berkala kembali ke APR untuk membandingkan pinjaman, kad kredit dan akaun simpanan. Kalkulator kada…
• Penyelesai sistem linear (2×2 / 3×3)
  Selesaikan sistem linear 2×2 dan 3×3 dengan eliminasi Gauss (RREF), klasifikasikan jenis solusinya, tampilkan bentuk parametrik, residual, langkah eliminasi, serta opsi aturan Cramer 2×2.
• Permutation & Combination Calculator (nPr, nCr) — with Steps
  Compute permutations nPr, combinations nCr, and factorial n! with exact BigInt results, scientific-notation approximations, step logs, teacher notes, and shareable URLs.
• Prime Factorization with Steps & Factor Tree | τ(n), σ(n), φ(n)
  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)
  Deterministic coin, dice, and roulette simulations compare theory vs empirical results, surface Wilson 95% confidence intervals, convergence charts, CSV/LaTeX exports, and full How it's calculated steps.

Q

• Quadratic & Polynomial Solver with Steps
  Show exact and decimal roots, discriminant classification, factorization, completing the square, and a parabola plot. Polynomial mode (≤3) walks through rational root candidates and synthetic division.
• Quadratic Equation Solver (Discriminant & Vertex)
  If a = 0 the expression is linear. The solver automatically switches to bx + c = 0 and reports the appropriate result.

R

• Radical Simplifier & Rationalizer (with steps) — √, nth roots, conjugates
  Learn to simplify radicals, rationalize denominators (monomial or a+b√m), combine like radicals, and convert A^(p/q) ↔ √[q]{A^p} with transparent step-by-step logs.
• Ratio, Proportion & Percentage Solver (Step-by-Step)
  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.
• Rawak & Loteri: Pemetik, Dadu, Kebarangkalian | CalcBE
  Cari alat rawak yang betul dengan pantas: pemilih rawak berwajaran, pemilih rawak, alat dadu, serta kalkulator kebarangkalian. Penyemak imbas sahaja, tiada log masuk.
• RC / RL / RLC Calculator — time constant, cutoff, resonance & phase (with steps)
  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.
• Riemann Sums Calculator | Left/Right/Trapezoid/Simpson
  Visualise left/right, midpoint, trapezoid and Simpson sums for f(x), compare with an adaptive Simpson reference, and export CSV or share a link.

S

• Sampling & Bootstrap — CLT Explorer (with steps)
  Simulate uniform, normal, exponential, and Bernoulli samples with a seeded LCG, compute mean/median/proportion estimates, bootstrap percentile and t/normal CIs, and visualise CLT histograms with How it's calculated st…
• Sequences & Series (Arithmetic / Geometric) — terms & sums with steps
  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.
• Simulator gerakan harmonik ringkas (SHM) — dengan langkah dan tenaga | CalcBE
  Simulasi gerakan harmonik jisim-spring secara analitik, Euler-Cromer atau RK4; semak omega, tempoh, tenaga, log yang boleh dikongsi, graf dan eksport CSV.
• Solver Segitiga - Undang -undang Sines/Cosines (SSA samar -samar) | Calcbe
  Selesaikan segitiga dengan SSS, SAS, ASA/AAS, dan kes SSA yang samar -samar. Lihat formula langkah demi langkah, suis ijazah/output radian, pilih tempat perpuluhan, dan lihat gambarajah anotasi.
• Standard Calculator (History & Memory)
  Perform four‑function math with parentheses and percent, a running tape, and memory slots—fully keyboard accessible, with a shareable result link.
• Statistik dadu – kemungkinan kejayaan & kalkulator pengedaran | CalcBE
  Kira kebarangkalian kejayaan, taburan tepat atau simulasi, min/SD dan mod teratas untuk tatatanda dadu NdS +/- K. Auto menukar Exact/Sim, menunjukkan histogram dan berkongsi sebagai teks, PNG atau URL sepenuhnya dalam…

T

• Taxa de esforço (DTI)
  Introduza o rendimento mensal bruto e as despesas mensais de dívida para calcular a taxa de esforço (DTI). Resultado educativo; não é aconselhamento financeiro.
• Taylor & Maclaurin Series — with steps and graphs
  Generate Taylor/Maclaurin P_n(x) with symbolic derivatives, fall back to least-squares fits when needed, and compare f and P_n on the same canvas. Includes error summaries, step-by-step logs, LaTeX, CSV, and shareable…
• Topik & Koleksi | CalcBE.com
  Semak imbas koleksi topik CalcBE untuk mencari kalkulator atau alat yang betul dengan cepat (cabutan rawak, PDF, pinjaman, cukai dan banyak lagi).
• Triangle Solver (SSS / SAS / ASA, Area & Circumradius)
  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 semakan dadu – d20 kelebihan/keburukan dan kejayaan kumpulan dadu | CalcBE
  Jalankan semak d20 pantas dengan kelebihan atau kekurangan, bandingkan dengan DC, dan gulungkan kumpulan dadu untuk mengira kejayaan secara langsung dalam penyemak imbas anda. Simpan gulungan setempat, simpan sejarah…
• Truth Table & Logic Evaluator — DNF/CNF Simplifier
  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
  Explore y = A*f(bx+φ)+D for sine, cosine, and tangent. Sync the unit circle and graph, inspect amplitude, period, phase shift, export CSV samples, copy LaTeX, and share the exact state.

V

• Vector Calculator — dot/cross, projection, angle, area, triple (with steps)
  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.

W

• Withholding Tax Estimator (TRAIN) — Edukasyonal
  Tantyahin ang buwanang withholding mula sa buwanang nabubuwisang kita gamit ang TRAIN annual schedule (example). Edukasyonal lamang; maaaring mag-iba ang aktuwal na payroll.

#

• الحد الأدنى للسداد (بطاقة ائتمان)
  احسب عدد الأشهر وإجمالي الفائدة عند سداد الحد الأدنى لبطاقة الائتمان بناءً على الرصيد الحالي والنسبة السنوية والحد الأدنى (نسبة/مبلغ ثابت).
• تبدیل تومان ↔ ریال (ساده)
  تومان و ریال را با نسبت ثابت ۱ تومان = ۱۰ ریال تبدیل کنید. لینک نتیجه قابل اشتراک.
• บัตรเครดิต: จ่ายขั้นต่ำ (ประมาณการ เดือนและดอกเบี้ย)
  ป้อนยอดคงค้าง อัตราดอกเบี้ยต่อปี (APR) อัตราจ่ายขั้นต่ำ (%) และยอดขั้นต่ำ (บาท) เพื่อประมาณจำนวนเดือนและดอกเบี้ยรวม (เพื่อการศึกษา)
• แปลงพื้นที่ ที่ดิน: ไร่/งาน/ตารางวา ↔ m²
  แปลงพื้นที่ระหว่างไร่‑งาน‑ตารางวา และตารางเมตร: 1 ไร่ = 1600 m², 1 งาน = 400 m², 1 ตร.วา = 4 m² พร้อมลิงก์ผลลัพธ์ที่แชร์ได้