Concept guide
Divisor-poset inversion of an affine function
For f(k)=2k+1 at n=6, F(6)=28 and inversion returns f(6)=13; n=1 roundtrips too.
OCME · Bilingual mathematics & derivations
Concept derivation guides
299 concept teaching guides, separate from the 36,000 individual question derivations.
Search all questions & derivations →