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1. Jan 7, 2016

Evin Baxter

Mod note: Thread moved from HW section
1. The problem statement, all variables and given/known data

My native language is not English,and i'm not good in reading hand writtings.I got a short passage on mathematics.Please tell me if you could help me with that.I've attached it as
"Lif.pdf".
Best,

2. Relevant equations

3. The attempt at a solution

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• Lif.pdf
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Last edited by a moderator: Jan 7, 2016
2. Jan 7, 2016

Staff: Mentor

The handwriting is close to illegible, but whoever wrote it is apparently doing a Taylor expansion of a function of two variables.
The expressions such as $\rho u_y$ and $(\rho u)_{yy}$ are first and second partial derivatives with respect to y.
Hope that helps.

3. Jan 7, 2016

Staff: Mentor

Here is what I deciphered. I cannot vouch that it is exact. There is one word, repeated, that I couldn't figure out.

4. Jan 7, 2016

Staff: Mentor

@DrClaude, the word you indicated is "math" I believe.

5. Jan 7, 2016

Staff: Mentor

I was trying to find a word with an o in it, but "math" would make sense.

6. Jan 8, 2016

Evin Baxter

Thanks a lot,

7. Jan 8, 2016

Evin Baxter

Thanks a lot,

8. Jan 8, 2016

Staff: Mentor

And "moth" probably doesn't make sense.

9. Jan 11, 2016