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 May18 accepted Is there a good book on Circulant Matrices? May14 answered Is there a good book on Circulant Matrices? May13 comment Is there a good book on Circulant Matrices? Yes, that's what I gathered. My eyes just don't like the block print for some reason. May13 revised Is there a good book on Circulant Matrices? edited body May13 asked Is there a good book on Circulant Matrices? May11 accepted Notation for a vector with constant equal components of arbitrary dimension May11 comment Notation for a vector with constant equal components of arbitrary dimension Thanks. I also saw this article mathoverflow.net/questions/9898/… May11 comment Notation for a vector with constant equal components of arbitrary dimension Is this standard? May11 asked Notation for a vector with constant equal components of arbitrary dimension May11 comment Notation for replacing a matrix column with a vector Thank you, that's good too. I will have a think about this with respect to my work :-) May10 accepted Notation for replacing a matrix column with a vector May10 comment Notation for replacing a matrix column with a vector Thank you that's great. Nice notation ! May10 comment Notation for replacing a matrix column with a vector Thanks, I was looking for something similar to this. I was going to use $A_j[v]$ before you answered my question. May10 asked Notation for replacing a matrix column with a vector May4 revised Computing the complex integral? deleted 1 character in body Apr13 comment Calculate $\int_\Gamma ze^{z}dz$ where $\Gamma$ is line from point $z_1=0$ to point $z_2=\frac{\pi i}{2}$ @user227317 yes. See my answer for full details, but you got the answer! You can also use Blatter's approach too. Apr13 answered Calculate $\int_\Gamma ze^{z}dz$ where $\Gamma$ is line from point $z_1=0$ to point $z_2=\frac{\pi i}{2}$ Apr12 comment Calculate $\int_\Gamma ze^{z}dz$ where $\Gamma$ is line from point $z_1=0$ to point $z_2=\frac{\pi i}{2}$ @user227317 no, as I said use the substitution $z=it$. Also @ JessicaK's solution will also work. See also @ ChrisrianBlatter's answer. Apr12 comment Calculate $\int_\Gamma ze^{z}dz$ where $\Gamma$ is line from point $z_1=0$ to point $z_2=\frac{\pi i}{2}$ You need to parametrize the curve $\Gamma$, e.g. let $z(t)=it$ where $t\in[0,\pi/2]$. Looks like integration by parts may be helpful too. Apr11 revised Calculating the lie algebra of $SO(2,1)$ added 1 character in body