Comments for Math 267
https://blogs.ubc.ca/mat267
Mathematical Methods for EECEMon, 15 Apr 2013 06:35:18 +0000hourly1https://wordpress.org/?v=4.6.1Comment on Homework #10 by Ian Zwiers
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-113
Mon, 15 Apr 2013 06:35:18 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-113No, the roots are unique.

(z – 1 – sqrt(i)) * (z – 1 + sqrt(i)) = (z^2 -2 z +2)

]]>Comment on Homework #10 by Himanshu
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-110
Sun, 14 Apr 2013 22:21:33 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-110For Q5b
The roots for (z^2 – 2 Z +1 – i) could be (1 +/- sqrt(i)) as well, right?
because (z – 1 – sqrt(i)) * (z – 1 + sqrt(i)) = (z^2 – 2 Z +1 – i)
]]>Comment on Homework #10 by Ian Zwiers
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-106
Sun, 14 Apr 2013 05:50:47 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-106I don’t know of any shortcuts for this one.
]]>Comment on Homework #10 by Ian Zwiers
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-105
Sun, 14 Apr 2013 05:47:45 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-105If and are solutions of a quadratic polynomial , then that means:
]]>Comment on Homework #10 by Ian Zwiers
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-104
Sun, 14 Apr 2013 05:46:34 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-104Haha. Yes. Another fix. Thanks!
]]>Comment on Final Exam Details by Ian Zwiers
https://blogs.ubc.ca/mat267/final-exam-details/#comment-103
Sun, 14 Apr 2013 05:43:08 +0000http://blogs.ubc.ca/mat267/?p=752#comment-103If you don’t calculate an integral, you are guaranteed to lose marks. If you don’t calculate a derivative, you might. It will depend on the marking scheme. To be safe, you should, but its up to your exam-time management.
]]>Comment on Homework #10 by Ian Zwiers
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-102
Sun, 14 Apr 2013 05:30:29 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-102Yes, a square root was missing. I’ve updated the solutions. Thank you!
]]>Comment on Homework #10 by C
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-101
Sun, 14 Apr 2013 05:29:06 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-101For 2 b is there a short way to find a, b, and c in the PFE? Multiplying out all the terms is really a big mess, and the residue method doesn’t seem to work because of the ‘z’s in the numerator. Thanks.
]]>Comment on Homework #10 by alex
https://blogs.ubc.ca/mat267/exercises/homework-10/#comment-100
Sun, 14 Apr 2013 03:05:47 +0000http://blogs.ubc.ca/mat267/?page_id=748#comment-100Is the answer to 5a missing a ‘z’ in the numerator? What happened to the ‘z’ that was being multiplied by x(z)?
]]>Comment on Final Exam Details by Daniel Chong
https://blogs.ubc.ca/mat267/final-exam-details/#comment-97
Sun, 14 Apr 2013 01:29:41 +0000http://blogs.ubc.ca/mat267/?p=752#comment-97On homework, we would lose marks if we did not calculate derivatives . However, on MT2, no marks were lost for leaving the answer in the form without taking the derivative of the Fourier Transform. Is this going to be true for the final too? As it would save much time not having to calculate these derivatives sometimes (and leave less room for error).
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