Probability Calculator

Instantly plot and examine the graph of mathematical functions.

Quickly calculate square roots, cube roots and exponents.

Explore the digits of pi and do circle-related calculations.

A full-featured calculator with algebra, trigonometry and calculus keys.

Calculate percentages, increases, decreases, percentage difference, and original values.

Calculate arithmetic, geometric, and harmonic means along with sum, minimum, and maximum values.

Calculate weighted averages using grades, credits, and coefficients or find the value needed for a target average.

Calculate mean, median, mode, standard deviation, variance, range, quartiles, and IQR.

Solve direct and inverse proportions, calculate scale, and simplify ratios.

Add, subtract, multiply, divide, and simplify fractions or convert them to decimal, percent, and mixed numbers.

Add, subtract, and multiply matrices or calculate determinant, inverse, transpose, rank, and trace.

Add and subtract vectors or calculate dot product, cross product, magnitude, unit vector, angle, and projection.

Calculate permutations, combinations, selections with repetition, factorials, and binomial coefficients exactly.

Test primality, find prime factors, list primes in a range, and calculate neighboring prime numbers.

Calculate the GCD and LCM of 2–10 numbers with Euclidean steps and prime factorizations.

Convert binary, octal, decimal, hexadecimal, and custom bases from 2 through 36 exactly.

Generate random integers, decimals, odd, even, or unique number lists.

Calculate natural logarithms, log10, custom-base logarithms, antilogs, and change-of-base results.

Convert numbers to scientific, standard, or engineering notation and choose significant figures.

Evaluate, add, subtract, multiply, differentiate, solve, and factor polynomials.

Calculate complex arithmetic, conjugate, modulus, argument, and polar conversions.

Solve first- and second-degree equations step by step.