Matrices and indexing
Matrices are the default type, and indexing selects rows and columns.
What you will be able to do
- Use A(1,2) for element access.
- Use A(:,2) for a column.
- Use size and numel.
In plain English
Matrices are the default type, and indexing selects rows and columns.
- Use A(1,2) for element access.
- Use A(:,2) for a column.
- Use size and numel.
A = [1 2; 3 4];
column = A(:, 2);
disp(column')
disp(size(A))Your turn
EasyExplain it back
Answer from memory: What does A(:,2) select?
TEXT · starter
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Knowledge checkQuestion 1
What does A(:,2) select?
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