Math & Education

Instantly find the greatest common divisor and least common multiple of two numbers.

Check whether a number is prime, and list all primes within a range.

Convert integers to Roman numerals, and Roman numerals back into integers.

Convert numbers between binary, octal, decimal and hexadecimal.

Add, subtract, multiply and divide fractions, including mixed numbers.

Compute determinants, transpositions and matrix multiplication.

Find the percentile rank of a value within a data set.