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visits member for 3 years, 9 months
seen Sep 2 '13 at 3:01

Jul
21
revised Linear Algebra: different determinant answers
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Jul
21
suggested approved edit on Linear Algebra: different determinant answers
Jul
21
revised Linear Algebra: different determinant answers
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Jul
21
answered Laplace transform and Differentiation help
Jul
21
comment Help with a derivative
@Ben: You can disregard the first fraction as a constant multiple and the second fraction you can use the power rule after doing some simplifying.
Jul
20
suggested rejected edit on Laplace transform and Differentiation help
Jul
20
revised Solution to 2nd order PDE
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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
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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 rejected edit on integration by partial fraction
Jul
18
revised Problem solving a couple of ODEs
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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.