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Online Math Tools is the OnlineTools.com sub-site for math — number sequence generators, fractals, space-filling curves, constants, matrix operations, and visualisations.
Generates abundant numbers (those exceeding the sum of their divisors).
Generates the Baum-Sweet binary sequence.
Generates deficient numbers (those less than the sum of their divisors).
Computes the factorial of a given non-negative integer.
Lists Fibonacci numbers that are also prime.
Tests whether a number belongs to the Fibonacci sequence.
Lists every integer factor of a given number.
Computes the prime factorisation of any number.
Generates a sequence of even integers.
Generates Fibonacci numbers.
Generates Lucas number sequences.
Generates Fibonacci numbers extended to negative indices.
Generates a list of prime numbers.
Generates the self-referential Gijswijt sequence.
Generates the self-describing Kolakoski sequence.
Generates the look-and-say (Conway) sequence.
Extends Lucas numbers to negative indices.
Generates the paperfolding (dragon curve) sequence.
Generates perfect numbers (equal to the sum of their divisors).
Tests whether a number is prime.
Generates the Golay-Rudin-Shapiro binary sequence.
Generates the Prouhet-Thue-Morse binary sequence.
Generates the classic Cantor set fractal.
Generates the Harter-Heighway dragon curve fractal.
Generates digits of the golden ratio φ to arbitrary precision.
Generates Pascal's Triangle of binomial coefficients.
Generates digits of π to arbitrary precision.
Sums multiple matrices element-wise.
Generates an identity matrix with ones on the diagonal.
Computes the inverse of a matrix.
Computes the determinant of a square matrix.
Multiplies two matrices using standard matrix multiplication.