Penrose tiles to trapdoor ciphers and the return of Dr. Matrix
Gardner, Martin
Penrose tiles to trapdoor ciphers and the return of Dr. Matrix Martin Gardner - Washington, D.C Mathematical Association of America - ix;319p.
9782883855218
--Mathematical recreations.--, and Penrose Tiles to Trapdoor Ciphers and the Return of Dr. Matrix
793.74 GAR
Penrose tiles to trapdoor ciphers and the return of Dr. Matrix Martin Gardner - Washington, D.C Mathematical Association of America - ix;319p.
9782883855218
--Mathematical recreations.--, and Penrose Tiles to Trapdoor Ciphers and the Return of Dr. Matrix
793.74 GAR