Questions: What Matlab function will divide a plot window into a set of 8 subwindows with 4 rows and 2 columns?

The answer is the second one: subplot(4,2,1)

Explanation for each option:

1. subplot $(2,4,1)$: This is not a valid syntax in MATLAB. MATLAB uses parentheses, not dollar signs, for function arguments.

2. subplot(4,2,1): This is the correct syntax. The subplot function in MATLAB divides the current figure into a grid of subplots. The first argument (4) specifies the number of rows, the second argument (2) specifies the number of columns, and the third argument (1) specifies the position of the subplot in the grid. Therefore, subplot(4,2,1) divides the plot window into 4 rows and 2 columns, creating 8 subwindows.

3. Can't be done in Matlab: This is incorrect. MATLAB can indeed divide a plot window into multiple subwindows using the subplot function.

4. subplot $(2,4)$: This is not a valid syntax in MATLAB. It also does not specify the position of the subplot, which is required.

In summary, the correct MATLAB function to divide a plot window into 8 subwindows with 4 rows and 2 columns is subplot(4,2,1).