Latex Matrix with Curly Brackets
To create a matrix with curly brackets around it, you can use the cases environment.
Example:
\begin{cases} % Start of the cases environment
1 & \text{if } i=j \\ % First case, returns 1 if i equals j
0 & \text{otherwise} % Second case, returns 0 otherwise
\end{cases} % End of the cases environment
The cases environment is used to define a piecewise function that returns different values depending on the input. In this case, the function returns 1 if i equals j, and 0 otherwise. The \text command is used to display text within the function definition.
Output:
*** QuickLaTeX cannot compile formula:
\begin{cases} % Start of the cases environment 1 & \text{if } i=j \\ % First case, returns 1 if i equals j 0 & \text{otherwise} % Second case, returns 0 otherwise \end{cases} % End of the cases environment
*** Error message:
\begin{cases} on input line 8 ended by \end{document}.
leading text: \end{document}
Improper \prevdepth.
leading text: \end{document}
Missing $ inserted.
leading text: \end{document}
Missing } inserted.
leading text: \end{document}
Missing \cr inserted.
leading text: \end{document}
Missing $ inserted.
leading text: \end{document}
You can't use `\end' in internal vertical mode.
leading text: \end{document}
\begin{cases} on input line 8 ended by \end{document}.
leading text: \end{document}
Missing } inserted.
leading text: \end{document}
Missing \right. inserted.
leading text: \end{document}
Emergency stop.
Note:
The curly braces {} are automatically generated by the cases environment to
denote the function definition. The text is aligned to fit within the available space.
Example:
If ‘i’ equals ‘j’, the function will return 1:
{i = j: } \begin{cases} 1 & \text{if } i=j \\ 0 & \text{otherwise} \end{cases} = 1
If i does not equal j, the function will return 0:
If i does not equal j, the function will return 0:
{i ≠ j: } \begin{cases} 1 & \text{if } i=j \\ 0 & \text{otherwise} \end{cases} = 0
Latex Matrix with Double Vertical Bar Brackets
To create a matrix with double vertical bars around it, you can use the ‘matrix*’ environment provided by the mathtools package.
Example:
Here is an example of a 2 x 2 matrix with double vertical bars:
\begin{matrix*}[r] % Start of the matrix* environment, with right-aligned columns
1 & 2 \\ % First row of the matrix
3 & 4 % Second row of the matrix
\end{matrix*} % End of the matrix* environment
The ‘[r]’ option inside the ‘matrix*’ environment specifies that the columns should be right-aligned. Other options include ‘[l]’ for left-aligned columns, and ‘‘ for centered columns.
Output:
The output of this code will be a 2×2 matrix with the values ‘1’,’ 2′,’ 3′, and ‘4’ aligned to the right:
Note that the brackets ‘⎡’,’⎣’, ‘⎤’, and ‘⎦’ are automatically generated by the matrix* environment to denote the matrix. The values are separated by spaces, and each row is separated by ‘\\’.
This type of matrix alignment is often used in mathematics to align decimal points or other numerical values in tables.
Latex Small Inline Matrix
If you want to create a small inline matrix, you can use the smallmatrix environment within the math mode. Here is an example of a 2 x 2 matrix within a sentence:
The matrix $\begin{smallmatrix}
1 & 2 \\
3 & 4
\end{smallmatrix}$ is invertible.
Output:
In this example, the statement about the matrix is typeset in regular text, but the matrix itself is typeset using the ‘smallmatrix’ environment. The ‘smallmatrix’ environment is similar to the matrix environment but produces a smaller matrix that is suitable for use inline with text. The matrix is enclosed in dollar signs ‘$’ to indicate that it should be typeset inline with the text.
matrices in LaTeX
Matrices are an essential tool in mathematics and science for organizing and manipulating data. LaTeX provides a powerful set of tools for creating matrices that can be customized to fit your specific needs. In this article, we will explore how to create matrices in LaTeX and some of the formatting options available.