P154780
predicate
Indicates that a document or file is in Portable Document Format (PDF), typically representing a fixed-layout digital document.
Sample triples (1)
| Subject | Object |
|---|---|
| chi-square distribution | f(x;k) = 1/(2^{k/2} Γ(k/2)) x^{k/2-1} e^{-x/2} for x>0 ⓘ |