Matemáticas y estadísticas

Calculadora de álgebra gratuita: resuelve ecuaciones lineales y cuadráticas, simplifica expresiones, factoriza polinomios, expande expresiones y resuelve sistemas de ecuaciones 2x2 con soluciones paso a paso.

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Free area calculator supporting 19 shapes — square, rectangle, triangle (6 methods), circle, ellipse, trapezoid, parallelogram, sector, rhombus, kite, pentagon, hexagon, octagon, regular polygon, annulus, semicircle, circle segment, rectangular border, and irregular quadrilateral. Instant area and perimeter results with step-by-step formulas and unit conversion.

Calculadora de Promedios Gratis — calcula la media aritmética, mediana, moda, rango, desviación estándar, media geométrica, media armónica y más de cualquier conjunto de números. Soporta modos de promedio simple y ponderado.

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Free Confusion Matrix Calculator — compute accuracy, precision, recall, F1 score, MCC, Cohen's Kappa, specificity, and 15+ classification metrics from TP, FP, TN, FN inputs. Supports binary and multi-class modes.

Free Statistical Process Control (SPC) Control Chart Calculator — supports I-MR, X-bar R, X-bar S, P, NP, C, and U charts with UCL, LCL, Nelson run rule detection, and process capability (Cp, Cpk).

Free Process Capability Index (Cpk, Cp, Pp, Ppk) calculator for manufacturing and quality control. Calculate capability indices from summary statistics or raw data, with DPMO, sigma level, and yield outputs.

Free Derivative Calculator with step-by-step solutions. Compute first, second, and higher-order derivatives of polynomials, trigonometric, exponential, logarithmic, and composite functions instantly.

Solucionador de Ecuaciones Gratuito — resuelve ecuaciones lineales, cuadráticas y sistemas de ecuaciones paso a paso con análisis de discriminante, formas factorizadas y verificaciones de solución.

Free F1 Score Calculator — compute F1 score, precision, recall, accuracy, specificity, MCC, and more from a confusion matrix or direct precision/recall inputs. Supports F-beta, macro/micro/weighted averaging for multi-class models.

Free Greatest Common Factor (GCF) calculator — also known as GCD or HCF. Find the GCF of 2 to 10 numbers instantly with step-by-step solutions using Euclidean algorithm, prime factorization, or listing factors.

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Free Integral Calculator — compute indefinite and definite integrals with step-by-step solutions, Riemann sum approximations, and interactive area-under-curve charts for polynomials, trigonometric, exponential, and logarithmic functions.

Free Least Common Multiple (LCM) Calculator — find the LCM of 2 to 10 integers instantly with step-by-step solutions using prime factorization, GCF method, or listing multiples.

Free Logarithm (Log) Calculator — compute log base 10, natural log (ln), binary log (log2), antilog, change of base, and solve for any logarithm variable with step-by-step solutions and real-world examples.

Free Logarithm Calculator — compute log, antilog, natural log, binary log, and custom-base logarithms. Solve log equations, generate log tables, and explore scientific applications like pH, decibels, Richter scale, and doubling time.

Calculadora de Matrices en línea gratuita para suma, resta, multiplicación, determinante, inversa, transposición, valores propios, RREF, descomposición LU y resolución de sistemas lineales — todo calculado al instante en tu navegador.

Free Matrix Multiplication Calculator — multiply two or more matrices step by step, with color-coded dot product breakdowns, heatmap visualization, and LaTeX/CSV export. Supports A×B, A^n, scalar multiplication, and chained A×B×C.

Free medical test probability calculator using Bayes' theorem — compute post-test probability, PPV, NPV, likelihood ratios, and more from sensitivity, specificity, and prevalence.

Free Online Calculator with basic and scientific modes — perform arithmetic, trigonometry, logarithms, memory functions, and more directly in your browser.