Answers.com > Wiki Answers > Categories > Jobs & Education > Education > School Subjects > Math and Arithmetic > Is idempotent matrix a square matrix?

Is idempotent matrix a square matrix?

In: Math and Arithmetic, Algebra, Linear Algebra [Edit categories]

Answer:

A square matrix K is said to be idempotent if K²=K.
So yes K is a square matrix

First answer by Mathdoc. Last edit by Mathdoc. Contributor trust: 424 [recommend contributor ]. Question popularity: 2 [recommend question].

[report abuse]

Can you answer these Math and Arithmetic questions?

	What is a piece of a circle called?	Answer it!
	What is not a true statement about absolute value?	Answer it!
	How many digits in id number?	Answer it!
	Did Ahsoka Tano meditate 2 or 4 times in her life?	Answer it!
	What does a half cu ft measure in feet?	Answer it!

What is idempotent matrix?
An idempotent matrix is a matrix which gives the same matrix if we multiply with the same. in simple words,square of the matrix is equal to the same matrix.if M is our matrix,thenMM=M.then M is a...
What is a square matrix?
Square Matrix: When m=n (Here m=Rows and n=colums) are same is called square matrix. Ex. A=|Bij|
What are the differences between an idempotent matrix and a generalized inverse of a matrix?
Idempotent Matrix:An idempotent matrix, A, is the specific periodic matrix (see note) where k=1, thus having the property A2=A (we can also say A.A=A).Inverse Matrix:Given a square matrix, A, its...
If a matrix has only one element is it a square matrix?
Yes.
What is an idempotent give examples of idempotent matrix.?
An idempotent is a matrix whose square is itself. Specifically, A^{2}=A. For example the 2x2 matrix A= 1 1 0 0is idempotent.