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Choose the correct answer.
The formula for the determinant of a square 2X2 matrix.
|ab|
|cd|
is a'd-b'c A subsystem receives one message for each value (i e. a(v) b(v). c(v) and d(v) where v is a real number) These messages can be in any order, and the ensure sequence is followed by an "end" message. The subsystem must calculate the determinant and output it upon receipt of the end message If there are multiple messages for one value (e g . two a(v) messages), or the end message is received before all values have been received, the subsystem should signal an error.
Which state machine correctly models the required behavior? If more than one slate machine is correct, select the one with the fewest slates.
A)
B)
C)
D)
Suggested Answer: B
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27 comments · newest first
RO
Rory
10 months ago
I didn't know the determinant could be calculated like this!
AM
Amie
11 months ago
Wait, are we sure about the order of messages?
ER
Erick
11 months ago
I think option B is better, though.
HO
Hortencia
11 months ago
Definitely option C! It fits the requirements.
LI
Lina
11 months ago
The determinant formula is a'd - b'c.
RO
Roxanne
12 months ago
I’m leaning towards option B, but I’m not entirely confident. I wish I had reviewed the state machine diagrams more thoroughly before the exam.
MA
Matilda
12 months ago
I feel like option C might be the right choice, but I’m a bit confused about how the error signaling works in the context of the messages.
AR
Arlean
12 months ago
I think we practiced a similar question about state machines in class, but I can't recall which option has the fewest states.
EA
Earlean
1 year ago
I remember the determinant formula for a 2x2 matrix is ad - bc, but I'm not sure how that relates to the state machine options.
ME
Melvin
1 year ago
This is a good test of our understanding of state machines and event-driven systems. I'll methodically go through each option, checking that it meets all the requirements specified in the question.
CH
Chu
1 year ago
I'm a bit confused by the details of the message sequence and the determinant calculation. I'll need to re-read the question carefully and maybe sketch out some examples to make sure I understand it fully.
GI
Gilma
1 year ago
Okay, I've reviewed the question and the state machine options. I think Option C looks the most promising - it seems to handle the message sequence and error conditions properly.
ZE
Zena
1 year ago
The determinant formula is straightforward, but keeping track of the message sequence and handling errors could be challenging. I'll need to map out the expected flow to identify the correct state machine.
XO
Xochitl
1 year ago
This looks like a tricky state machine problem. I'll need to carefully analyze each option and think through the required behavior step-by-step.
LI
Lilli
1 year ago
Okay, let me think this through step-by-step. The MyException class is being thrown, and the Test class is handling it. I'll need to consider the different try-catch blocks and what they might produce.
SH
Shonda
2 years ago
Option D is just asking for trouble. It's way too complicated for this simple problem. I'm going with Option B, easy peasy.
MI
Minna
2 years ago
Option B it is, no need to make things more complicated.
RO
Rozella
2 years ago
Definitely, Option B is the way to go.
SY
Sylvia
2 years ago
Yeah, Option B seems like the most straightforward choice.
MA
Mariann
2 years ago
I agree, Option D looks like overkill.
RE
Renay
2 years ago
I'm not sure, but I think Option C could also be a valid choice.
GE
Gennie
2 years ago
Hmm, I think Option B looks like the best choice here. It covers all the required behavior and seems the most straightforward.
AN
Angella
2 years ago
I think Option B is the correct choice as well. It covers all the necessary steps.
KR
Kristel
2 years ago
I agree, Option B seems to be the most suitable for this scenario.
CA
Caitlin
2 years ago
Wait, did they just sneak in a 2x2 matrix question into this exam? Sneaky, sneaky...
FR
Francisca
2 years ago
I agree with Amos, Option A seems to be the right choice.
AM
Amos
2 years ago
I think the correct answer is Option A.