Math.

What is X% of Y, X is what % of Y, and percentage change — all in one place.

Percentage increase or decrease between two numbers.

Add, subtract, multiply, or divide two fractions and simplify the result.

Simplify a ratio or solve A:B = C:? for a missing term.

Solve A/B = C/D for the missing value.

Evaluate a math expression with +, −, ×, ÷, ^, sqrt, sin, cos, tan, log, ln, and π.

Solve ax² + bx + c = 0 for real or complex roots.

Mean, variance, and standard deviation (sample or population) of a dataset.

Central tendency measures for any list of numbers.

Greatest common divisor and least common multiple of two integers.