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Powers, roots, logs, and trig functions

Simple everyday arithmetic — add, subtract, multiply, divide

Mean, median, mode and range from a list

Add, subtract, multiply and divide fractions

Solve ax² + bx + c = 0 with full results

Check if a number is prime and find factors

Greatest Common Divisor and Least Common Multiple

Calculate powers, roots, and scientific notation

Generate random numbers within any range

Binary, Octal, Decimal, Hexadecimal conversions

Population & sample standard deviation

Find the missing side of a right triangle using a² + b² = c²

Find slope, y-intercept, line equation, midpoint, and distance between two points

Calculate nPr permutations and nCr combinations — how many ways to arrange or choose r from n

Round any number to N significant figures and understand sig fig counting rules

Convert to/from scientific notation and multiply, divide, or add in scientific notation

Convert any decimal, fraction, or percentage instantly to all three forms in one step

Find radius, diameter, circumference, or area from any one known circle value

Calculate event probability, P(A and B), P(A or B), and complement probability

Calculate area of circle, rectangle, triangle, trapezoid, parallelogram, ellipse, or sector

Calculate volume of sphere, cube, cylinder, cone, rectangular prism, or pyramid

Solve any triangle from 3 known sides/angles using the Law of Sines and Law of Cosines

Area, perimeter, angles, and sides of any triangle

Calculate percent error between estimated and actual values

Arithmetic and geometric sequence solver

Convert any number into its English word form for checks and invoices