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Lecture notes of the week: W3



# QS3: Week 3 Survey Questions

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📗 Question 0


📗 Question 1


 Question 2


📗 Question 3


 Question 4


📗 Question 5


 Question 6


📗 Question 7


 Question 8


📗 Question 9


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📗 [1 points] Which of the following are equivalent to context.rotate(Math.PI / 2); context.rotate(Math.PI / 2);?





None of the above.
📗 [1 points] Suppose a group in SVG has <g stroke="red", fill="green" transform="translate(10 10)">, and there is a rectangle inside the group <rect x="0" y="0" stroke="blue")>, which of the following are attributes of the rectangle?





None of the above.
📗 [1 points] Which of the following transformations are linear in 2D?





None of the above.
📗 [1 points] If the rotation matrix with angle r is [[a, b], [c, d]], what is the rotation matrix with angle -r? (This should apply to any value of r.)
📗 Note: for 2D rotation matrices [[a, c], [b, d]] and [[a, -b], [-c, d]] happens to be identical, so they are both correct answers.





None of the above.
📗 [1 points] Which of the following are properties of a rotation matrix [[a, b], [c, d]] in 2D?





None of the above.
📗 [1 points] Which ones of the following are matrices for scaling?





None of the above.
📗 [1 points] What is the 2D point if its homogeneous coordinates in 3D are [8, 4, 2]?





None of the above.
📗 [1 points] What is the transformation matrix if a unit square with vertices [0, 0], [1, 0], [0, 1], [1, 1] is transformed in [2, 3], [4, 5], [6, 7], [8, 9] (order does not matter)?





None of the above.
📗 [1 points] Please provide additional comments, questions, or feedback: 

📗 [1 points] Why are you submitting this survey?




Note: if you selected the third (please also email me) or forth choice, you only have to complete the last question.





Last Updated: November 30, 2024 at 4:35 AM