Precise Special Functions computes high-precision values of specialized mathematical functions: Bessel (J, Y, I, K), Riemann zeta, Gauss hypergeometric ₂F₁, complete elliptic integrals (K and E), and the Gamma function. Backed by arbitrary-precision arithmetic via mpmath — up to 1000 decimal digits. Suited for physics simulations, number theory, engineering calculations, and any context where a standard float or an inline code approximation is not precise enough. Every result is deterministic and cross-checkable against reference implementations. Ask naturally: "what is J₀(7.2) to 30 digits" and you get an exact value.
How to use
- 1Add it in ChatGPT
Open Precise Special Functions in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.
- 2Use it in a chat
Type @ in the composer and pick Precise Special Functions, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.
Disconnect
- 1Disconnect it in ChatGPT
Open Settings, then Apps or Plugins (the label depends on your rollout), select Precise Special Functions and choose Disconnect. ChatGPT stops acting through your account; past conversations aren't deleted.