How to Remember the Orientation of Rows and Columns

from University of Tokyo 1S1 Mathematical Sciences Foundation: Linear Algebra How to Remember the Orientation of Rows and Columns

• Consider the direction of the first stroke of the first character.
• “gi” (行) vector: horizontal orientation (x, y, z).
• “re” (列) vector: vertical orientation (x \n y \n z).
• The n-th column/n-th row can be understood by visualizing the vectors stacked on top of each other.