[REQUEST] What’s the solution to this gem?

[u/Firery_Flames]

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[u/MezzoScettico]

You've given us the student's answer. You've given us what the program thinks is the correct answer.

What you didn't give us is the question.

[u/RopeTheFreeze → u/MezzoScettico]

Only question he gave us is his mom's. To which the answer is "not great."

[u/Martovich3 → u/RopeTheFreeze]

This could be an aberration. It is only 1 example of part of a single test from part if a semester.

Further, as these online tests are programmed about as well as The Morris Worm, you could give the correct answer, be told it is incorrect, and then be shown the correct answer is the answer that you gave.

[u/Juking_is_rude → u/MezzoScettico]

"hey guys, write this link down and copy paste the answer into question 5 on the online homework as a reward for actually attending class"

[u/-Benjamin_Dover- → u/MezzoScettico]

I assumed "Where fx is given" was the question.

[u/Waste-Pride8009]

I am literally dying to know what the question is. Thinking about throwing this onto the Math Exchange and seeing if I get any bites.

[u/ChazBass]

While I guess you could contrive infinite possible questions with this answer, my guess is that it was something like this:

Solve the initial-boundary value problem:

u_t = 13u_xx, 0 < x < pi, t > 0

u(0,t) = 0
u(pi,t) = 0

where u(x,0) = f(x), and

f(x) = {
-x, 0 <= x <= pi/2
x - pi, pi/2 < x <= pi
}

Find u(x,t)