Math100's latest activity
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MMath100 reacted to Gavran's post in the thread Is this the correct general solution of the given PDE? with
Like.
Your method and your result in the original post are correct because every partial differential equation that only involves derivatives... -
MMath100 replied to the thread Is this the correct general solution of the given PDE?.By checking/verifying/confirming my final answer/solution for ## u(x, y)=[A(y)+B(y)\cdot x]e^{-3x} ##, I've obtained ## u_{x}(x...
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MMath100 reacted to DEvens's post in the thread What did you do with your old college textbooks? with Like.
Sadly, used bookstores won't even take old textbooks for free. So, unless it's some really famous text that has some special...
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MMath100 replied to the thread Is this the correct general solution of the given PDE?.Now I think that my assumption could be wrong then, because like you said above, we shouldn't pretend to solve such problems like we...
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MMath100 posted the thread Is this the correct general solution of the given PDE? in Calculus and Beyond Homework Help.Find the general solution of the partial differential equation ## u_{xx}+6u_{x}+9u=0 ##. Here's my work: Let ## u(x, y)=e^{rx} ##...
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MMath100 reacted to martinbn's post in the thread What did you do with your old college textbooks? with Like.
I am a bit of a book junkie and get STEM books whenever I can, I have accumualted a small library including books I definitely don't...
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MMath100 reacted to martinbn's post in the thread Definite integral involving rational function and 𝜋 with Like.
##u=x^2+\pi +1##
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MMath100 replied to the thread What did you do with your old college textbooks?.I kept most of my old college textbooks and only sold a few ones that aren't related to my academic major, they were all humanities...
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MMath100 reacted to mathwonk's post in the thread What did you do with your old college textbooks? with
Wow.
I currently still have over 250 mathematics, and some more physics, books from my university career on my (sturdy built-in) shelves ... -
MMath100 reacted to gmax137's post in the thread What did you do with your old college textbooks? with Like.
Here's the seismic section of my shelves, lol.
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MMath100 reacted to Gordianus's post in the thread What did you do with your old college textbooks? with Like.
I keep almost all of them. I had to work many hours to buy those books and I'm attached to them. Math and Physics books don't get outdated.
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MMath100 reacted to BillTre's post in the thread What did you do with your old college textbooks? with Wow.
When I was at Caltech I heard a story about how they got a lot of insurance money. They had one of the best engineering for earthquake...
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MMath100 reacted to Ivan Seeking's post in the thread What did you do with your old college textbooks? with Like.
I made the mistake of loaning out my Radio Astronomy, by Kraus. Never got it back. Most of my books have all been in boxes since I...
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MMath100 reacted to Dennis's post in the thread What did you do with your old college textbooks? with Like.
A small sample of what I have in my library of books.
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MMath100 reacted to nsaspook's post in the thread What did you do with your old college textbooks? with Like.
My youngest girl is in her last year of CS and physics, so she's using some of my old books for class background and reorganizing my...