MHB Tech Troubleshooting: Starting with Your Cell Phone

karush
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Ok had to start this with a cell phone
But need help even with first step
Just focusing in on #3
#4 I think is related
 
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It would be hard to find the coordinates of $T(p(x))$ when $T$ is not given.
 
Also, shouldn't that be "less than or equal to 2"?
 
Country Boy said:
Also, shouldn't that be "less than or equal to 2"?

yeah the homework lately has been known for typo's

I should probably just for go this one...
 
And shouldn't that be "forego"? ;)
 
Thread 'Derivation of equations of stress tensor transformation'

Thread 'Derivation of equations of stress tensor transformation'

Hello ! I derived equations of stress tensor 2D transformation. Some details: I have plane ABCD in two cases (see top on the pic) and I know tensor components for case 1 only. Only plane ABCD rotate in two cases (top of the picture) but not coordinate system. Coordinate system rotates only on the bottom of picture. I want to obtain expression that connects tensor for case 1 and tensor for case 2. My attempt: Are these equations correct? Is there more easier expression for stress tensor...
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