Constant
Recognition

The ultimate inverse symbolic calculator

3.14159265...π

Find the exact closed form formula from any decimal number

Find Formula From Decimal Number

Have you ever encountered a mysterious floating-point value like 1.61803398 or 2.50290787 and wondered where it came from? ConstantRecognition is a powerful inverse symbolic calculator and closed form finder that identifies the exact mathematical expression generating your numerical constant.

We perform an exhaustive brute-force search over a massive space of equations to instantly recognize mathematical constants, acting as a highly efficient alternative to traditional tools like PSLQ, RIES calculator online, and Wolfram Alpha.

Who is this for?

  • 🔬

    Physicists & Researchers

    Discover the analytic form behind experimental data or complex simulation outputs.

  • 📐

    Mathematicians

    Quickly identify numerical constants generated by integrals, infinite sums, or continued fractions.

  • 💻

    Engineers & Programmers

    Reverse-engineer magic numbers found in source code into their exact representations.

Example Identification

Input: 1.202056903159594
Match found!
ζ(3)
Apéry's constant

Why use ConstantRecognition?

WebAssembly Fast

Runs exhaustive brute-force search directly in your browser using high-performance WASM.

GPU Acceleration

Offload computations to your graphics card (WebGPU) for massive parallel equation testing.

100% Free & Local

No backend hosting costs. The entire algorithm executes on your machine, ensuring complete privacy.

Open Source Alternative

A modern, open-source alternative to SymPy nsimplify, Maple identify, and Wolfram Alpha.

Ready to identify a numerical value?