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 Tumbleweed
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  • 0 posts edited
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  • 3 votes cast
Sep
16
awarded  Tumbleweed
Sep
9
asked Is the Hessenberg form of a matrix unique?
Apr
23
asked Can different quaternions represent the same orientation?
Mar
14
accepted $\iiint _E\;e^{\sqrt{x^2+y^2+z^2}}\;dV$ where E is enclosed by the sphere $x^2+y^2+z^2=9$ in the first octant.
Mar
13
revised $\iiint _E\;e^{\sqrt{x^2+y^2+z^2}}\;dV$ where E is enclosed by the sphere $x^2+y^2+z^2=9$ in the first octant.
added 739 characters in body
Mar
13
asked $\iiint _E\;e^{\sqrt{x^2+y^2+z^2}}\;dV$ where E is enclosed by the sphere $x^2+y^2+z^2=9$ in the first octant.
Mar
9
comment How to do interpolation using the newton basis?
Thanks. My error was indeed that I forgot to write the $x(x-1)$ basis function in the end. But the matrix method is really easy if you want to learn it. In each column you calculate the value using the same basis function and fill in a different $x$ value in each row. This will form a triangular matrix since the ones above the diagonal will all be zero. Then add the $y$ values to form a augmented matrix. Solve it. And you should have the constants that correspond to each basis function.
Mar
5
asked How to do interpolation using the newton basis?
Mar
4
accepted Integrating $\sin^2(x)$ using imaginary numbers.
Mar
4
comment Integrating $\sin^2(x)$ using imaginary numbers.
@L.F. I know this it's the best way to do it, I was just interested on how to do it using imaginary numbers and get to know their properties better.
Mar
4
comment Integrating $\sin^2(x)$ using imaginary numbers.
@julien Thanks, I'm testing it now.
Mar
4
comment Integrating $\sin^2(x)$ using imaginary numbers.
How should I get it in imaginary numbers. But julien already answered it.
Mar
4
comment Integrating $\sin^2(x)$ using imaginary numbers.
ok. how is it then?
Mar
4
comment Integrating $\sin^2(x)$ using imaginary numbers.
No imaginary tag?
Mar
4
asked Integrating $\sin^2(x)$ using imaginary numbers.
Feb
26
awarded  Scholar
Feb
26
awarded  Supporter
Feb
26
accepted In partial fraction decomposition, do the terms in the denominator have to be irreducible polynomials?
Feb
24
awarded  Editor
Feb
24
comment In partial fraction decomposition, do the terms in the denominator have to be irreducible polynomials?
Thanks for noting the writing mistake. I've corrected it now.