There are at least two meanings on the word congruent in mathematics. Two geometric figures are said to be congruent if
one can be transformed into the other by an isometry (Coxeter and Greitzer 1967, p. 80). This relationship,
called geometric congruence, is written 
.
is also used to denote an
isomorphism.)
A number a is said to be congruent to b modulo m if 
(m divides 
).
Coincident, Congruence, Geometric Congruence, Homothetic, Isometry, Rotation, Similar, Translation
Coxeter, H. S. M. and Greitzer, S. L. Geometry Revisited. Washington, DC: Math. Assoc. Amer., 1967.
Eric W. Weisstein. "Congruent."
From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Congruent.html
 |
|||
|
|
||
© 1999 CRC Press LLC,
© 1999-2005 Wolfram Research, Inc.