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seen Sep 2 '13 at 3:01

Jul
20
revised Solution to 2nd order PDE
edited tags
Jul
20
comment Laplace transform and Differentiation help
@ Shai: Great job. Just have one problem following along of where the -$3$ came from on the second fraction $\mapsto$ $-3\dfrac{2}{(s-1)^2+2^2}$.
Jul
20
comment Laplace transform and Differentiation help
@IAmBrianDawkins: You forgot to put a $ at the end of your equation to properly display your $\TeX$ input.
Jul
19
revised Non-separable linear PDE
edited tags
Jul
19
revised Characteristics for 2nd order differential equations
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Jul
19
answered Second Order DE's
Jul
19
comment Problem solving a couple of ODEs
@Gerry: Okay I see, I did not even read the question. I just read the answers provided first then comments then the question.
Jul
18
suggested suggested edit on integration by partial fraction
Jul
18
revised Problem solving a couple of ODEs
edited tags
Jul
18
comment Problem solving a couple of ODEs
@Collman: Hint: Look at this form we have: $\frac{\mathrm{d}x}{\mathrm{d}y}+P(y)x=Q(y)$. Does something stick out what should be our integrating factor?
Jul
11
awarded  Organizer
Jul
11
revised Transformation and Matrices - Points and Vectors
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Jul
11
revised Conformability and Matrix Derivatives
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Jul
11
comment Help with integrating 101: $\int y \ln{y}\,dy$
@ Shai: Your Welcome.
Jul
11
suggested suggested edit on Help with integrating 101: $\int y \ln{y}\,dy$
Jul
11
comment Help with integrating 101: $\int y \ln{y}\,dy$
@ Shai: +1 for clever way of approach.
Jul
11
revised These calculations are correct ? About $\int\frac{e^{-x}}{x}dx$
Fixed Grammar.
Jul
11
suggested suggested edit on These calculations are correct ? About $\int\frac{e^{-x}}{x}dx$
Jul
10
comment Does anyone know of any good ways to get good at algebra without as much“grind” as doing hundreds of questions a night
@Anyone:$~$ Are there any remarks in this direction when it comes to higher algebra such as Abstract Algebra or Commutative Algebra. Thanks.
Jul
7
revised $i^2$ why is it $-1$ when you can show it is $1$?
Improved Formatting