Divider lines of matrix
71055
How to create vertical and horizontal dotted lines in a matrix?
16582
Show that $n$ lines separate the plane into $\frac{n^2+n+2}{2}$ regions
70897
Striking out matrix lines and columns: is Tikz the only way?
52002
Stable separation for two classes of elements in an array
47943
Replicate Element-wise in matrix
147401
Formatting arrows between rows of corresponding matrices
156218
Linear transformations map lines to lines
106319
Can we divide two vectors?
6120
What is the name of the horizontal division line?
80515
Underbrace in a matrix
64477
Determine reflection matrix over a line
59993
How to create the matrix attached that has 2x2 blocks in its diagonal and a square outlining them?
13948
Matrix in a matrix
138736
How do I draw a vertical dotted line separating two columns?
156271
How to extract the boundary of a raster image?
22540
Bisecting line segments in a tetrahedron.
34946
Create irregularly shaped gaps in cube