Entering 2D ExpressionsVectorsHow to type the row vector  Type a left parenthesis and a right parenthesis, then move the insertion point so it is between them. Type (), press  Type the first entry of the vector. Create a placeholder for the next entry by holding down the Control key and typing a comma. Type a, press   , Type the next entry into the placeholder (which is already selected). Create another placeholder with Control-comma and repeat. Type b, press , Type c, press , Type d Hold down the Control key and press the space bar to move out of the grid. Press  Use the right arrow key to move the insertion point out of the vector. Press  How to type the column vector  Type a left parenthesis and a right parenthesis, then move the insertion point so it is between them. Type (), press  Type the first entry of the vector. Create placeholder for the next entry by holding down the Control key and pressing Enter. Type a, press ↵ Type the next entry into the placeholder (which is already selected). Create another placeholder with Control-Enter and repeat. Type b, press ↵ Type c, press ↵ Type d Hold down the Control key and press the space bar to move out of the grid. Press Use the right arrow key to move the insertion point out of the vector. Press 
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