Mathematics·21 calculators
Percentages, equations, statistics, and algebraic computations
Nth term and finite sum for arithmetic or geometric sequences
Exact and cumulative binomial probabilities
Mean and proportion confidence intervals from sample summaries
Solve cubic equations and classify the root pattern
Differentiate an expression symbolically
Add, subtract, multiply, or divide fractions
Find GCD and LCM of two numbers
Graph y = mx + b with intercepts
Fit a straight line, inspect r and R², and estimate y
Solve two simultaneous linear equations
Small-matrix add, multiply, determinant, inverse, and transpose
Below, above, between, and percentile cutoffs for a normal model
Three-mode percentage calculator
Exact counts for the four standard combinatorics cases
Exact quotient and remainder for polynomial long division
Find prime factors of any integer
Solve ax² + bx + c = 0 with roots and vertex
Evaluate math expressions with advanced functions
Mean, median, mode, std dev from a data set
Plan a response target for survey proportions.
Weighted mean from percent or raw weights.