COMPUTATIONAL WORKBENCH / 15 MODELS
From formula to result.
Gravity, compact objects, quantum scales and numerical verification. Check domain, explicit units, and export your calculations.
SI / DOUBLE PRECISION / MODEL-AWARE
Kerr: horizon, ISCO and period
Ideal Kerr, prograde-orbit. Temperature and shade are calculated here separately for Schwarzschild; spin ≥ 0.
Enter the parameters and click "Calculate". The units of each field are indicated next to each other.
Displaying 9 significant digits is a number format, not physical data accuracy. Uncertainties are not automatically propagated; consider them separately.
SCIENTIFIC MODE
Free expression
Operations + − * / ^; sqrt, sin, cos, tan, asin, acos, atan, ln, log, exp, abs. Angles in radians. Constants pi, e (Euler number), c, G, h, hbar, kB. You control the units of expression.
LOCAL NOTEBOOK
Calculation journal
The last 30 calculations are stored only in this browser. You can export them; data is not sent to the server.
The log does not yet contain calculations. The first result will appear after the calculation.
Educational scientific tool with double precision arithmetic. It does not replace expert verification, is not a symbolic system, and does not propagate uncertainty.