Comprehensive mathematical and scientific calculators for algebra, geometry, statistics, trigonometry, calculus, and advanced computations. Solve complex equations, analyze data, and master mathematical concepts with tools used by students, teachers, engineers, and researchers worldwide.
From basic arithmetic to advanced calculus, calculate with precision and confidence.
Calculate the divine proportion (φ ≈ 1.618) with multiple modes: golden ratio segments, golden rectangles, and Fibonacci sequence verification. Features 16-decimal precision and comprehensive educational content.
Calculate percentage increases, decreases, and changes with professional accuracy. Features reverse calculations, multi-value comparisons, and step-by-step solutions.
Calculate percentages, percentage increase, decrease, and more.
Advanced scientific calculator with trigonometric and logarithmic functions.
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Calculate triangle area, perimeter, and angles from various inputs.
Calculate area of various shapes including rectangles, circles, triangles.
Professional circle calculator with 4 modes (circumference, diameter, radius, area) and 5 unit systems. Features real-time calculations, visual representation, formula breakdowns, and comprehensive conversions.
Calculate volume of 3D shapes like cubes, spheres, cylinders.
Solve quadratic equations using the quadratic formula.
Professional partial fraction decomposition calculator with real-time results, step-by-step solutions, and support for all factor types (linear distinct, linear repeated, quadratic distinct, quadratic repeated). Essential for calculus integration, Laplace transforms, and control systems.
Calculate standard deviation and variance from a data set.
Calculate slope and equation of a line from two points.
Calculate circle area, circumference, and diameter from radius.
Generate random numbers within specified ranges.
Find patterns and next numbers in arithmetic and geometric sequences.
Calculate percentage error between measured and actual values.
Calculate powers and exponents with step-by-step solutions.
Convert between binary, decimal, and perform binary arithmetic.
Convert hexadecimal numbers and perform hex arithmetic.
Calculate radioactive decay and half-life periods.
Calculate natural logarithms, common logarithms, and custom bases.
Calculate required sample size for statistical studies.
Calculate probability of events and combinations.
Find the least common multiple of numbers.
Find the greatest common factor of numbers.
Find all factors of a given number.
Find the prime factorization of a number.
Round numbers to specified decimal places or significant figures.
Perform matrix operations including addition, multiplication, and determinant.
Convert numbers to and from scientific notation.
Perform basic arithmetic operations.
Perform long division with step-by-step solution.
Calculate mean, median, and mode of numbers.
Calculate missing sides of right triangles using Pythagorean theorem.
Calculate all properties of right triangles.
Calculate comprehensive statistical measures for data sets.
Calculate mean, median, mode, and range for data sets.
Calculate permutations and combinations.
Calculate z-scores and standard normal probabilities.
Calculate confidence intervals for population parameters.
Calculate and simplify ratios and proportions.
Calculate distance between two points in 2D or 3D space.
Calculate surface area for various 3D shapes.
Calculate nth roots of numbers.
Perform arithmetic with very large numbers.
Find common factors between numbers.
Calculate p-values for statistical hypothesis testing.
Free online tally counter with multiple counters, goal tracking, keyboard shortcuts, undo, sound effects, and data export. Count people, events, workouts, inventory, and more with unlimited counters.
💡 Professor's Tip: When solving complex problems, break them into smaller steps. Write out each calculation, check units, and verify your answer makes sense in context. Most math errors come from rushing, not from difficulty. Slow down, show your work, and use calculators to verify!