Research data
ENDF TAB1 interval trace
Evaluate a supplied TAB1 table with explicit NBT regions and interpolation laws.
Your inputs
Start with an exampleYour result
Example resultHow it works
For each interval, select the first one-based NBT endpoint covering its right point. Apply INT law 1–5. Exact knots retain tabulated values; discontinuities retain every candidate and logarithmic domains remain explicit.
The first region is linear and gives 4 at x=2 and 12 at x=6. The final log-log interval has exponent 2 and gives about 72 at x=18.
Limits
Logical finite-number JSON only, up to 50000 points and 5000 queries, with bounded duplicate-knot output. No fixed-width ENDF parsing, INT6/multidimensional laws, extrapolation, physical/reaction validation or covariance. Repeated-x disagreement and nonpositive logarithmic endpoints stay unknown. Floating arithmetic uses finite-result checks.