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Mar
25
revised how do you solve $y''+2y'-3y=0$?
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Mar
23
revised Solving separable differential equation
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Mar
21
revised how do you solve $y''+2y'-3y=0$?
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Mar
20
comment Proving $\int_{0}^{\infty} \mathrm{e}^{-x^2} dx = \dfrac{\sqrt \pi}{2}$
@Ross Millikan: I found it that way as well. The area of interest would span the entire first quadrant of the $\mathbb{R}^{2}$ coordinate system. I was justing getting reading to answer but I seen it was going to be the same, just a bit more detailed steps inbetween to show the conversion from cartesian to polar coordinates, but yes pretty much the same method of attack I would have took. +1
Mar
20
revised how do you solve $y''+2y'-3y=0$?
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Mar
20
answered how do you solve $y''+2y'-3y=0$?
Mar
20
answered Solving separable differential equation
Mar
20
awarded  Teacher
Mar
20
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Mar
20
revised Calculate the unknown
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Mar
20
revised Calculate the unknown
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Mar
20
answered Calculate the unknown
Mar
20
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Mar
20
revised Eigenvalues of matrix
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Mar
20
answered Eigenvalues of matrix