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Transpose facts for kids

Kids Encyclopedia Facts

The transpose of a matrix A is another matrix where the rows of A are written as columns. Vectors can be transposed in the same way. We can write the transpose of A using different symbols such as AT , A′ , Atr and At.

Examples

Here is the vector \begin{bmatrix}
1 & 2  \end{bmatrix} being transposed:

  • \begin{bmatrix}
1 & 2  \end{bmatrix}^{\mathrm{T}} \!\! \;\!
= \,
\begin{bmatrix}
1   \\
2  \end{bmatrix}.

Here are a few matrices being transposed:

  • \begin{bmatrix}
1 & 2  \\
3 & 4 \end{bmatrix}^{\mathrm{T}} \!\! \;\!
= \,
\begin{bmatrix}
1 & 3  \\
2 & 4 \end{bmatrix}.
  • 
\begin{bmatrix}
1 & 2 \\
3 & 4 \\
5 & 6 \end{bmatrix}^{\mathrm{T}}  \!\! \;\!
= \,
\begin{bmatrix}
1 & 3 & 5\\
2 & 4 & 6 \end{bmatrix}. \;
  • 
\begin{bmatrix}
1 & 2 & 8 \\
3 & 4 & 3 \\
5 & 6 & 1 \end{bmatrix}^{\mathrm{T}}  \!\! \;\!
= \,
\begin{bmatrix}
1 & 3 & 5\\
2 & 4 & 6\\
8 & 3 & 1 \end{bmatrix}. \;

Properties

Given two matrices A and B, the following properties related to the transpose are true:

  • (A^T)^{-1} = (A^{-1})^T
  • (AB)^T = B^T A^T

Related pages

Images for kids

See also

Kids robot.svg In Spanish: Matriz transpuesta para niños

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Transpose Facts for Kids. Kiddle Encyclopedia.