Number:
992
Author:
Issue:
ET Vol 10, Dec 1857
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
E. Lampe, MQ Vol 64
Solved by:
W.J. Miller, ET Vol 11, Apr 58
Solved by:
S. Watson, ET Vol 11, Apr 58
Solved by:
G.B.M. Zerr, MQ Vol 60