Question
A technique with this name approximates propagation with short linear steps, often by solving the eikonal ("EYE-con-al") equation. For 10 points each:
[10m] Give this name of an optical technique in computer graphics that performs a Monte Carlo simulation by sampling from point sources of light.
ANSWER: ray tracing [or ray tracer]
[10h] The eikonal equation restricts the norm of this function of travel time. Instead of writing it with the Laplacian, the wave equation can be written as "u-sub-t-t over c-squared equals the divergence of this function of u."
ANSWER: gradient [prompt on del or nabla; prompt on partial derivative or derivative with respect to x or d-d-x] (The Laplacian is equivalent to the divergence of the gradient.)
[10e] The eikonal equation approximates the wave equation well when this quantity is large. This quantity for a wave equals velocity over wavelength.
ANSWER: frequency [prompt on f or nu]
<Science - Physics>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2025 PACE NSC | 06/07/2025 | Y | 42 | 15.71 | 81% | 55% | 21% |