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Showing posts from January 30, 2019

How can I export an embedded Power BI report as an image?

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0 I have embedded a Power BI report into my application within an iFrame, and now want to create a static image of that report. It appears that there is no inbuilt functionality to export a report as an image in the Power BI Embedded APIs. There appear to be some questions on the forum, and also some ideas asking for this feature or similar. I tried to use html2canvas, but it has a limitation preventing access to content from another origin. The fact that the source is a different origin means that this question suggests that what I want to do is impossible, but I have seen other applications that appear to be able to take such a screenshot. Are there any other ways that I could get a static image for an embedded Power BI report? powerbi-embedded

Sum of Symmetric Positive Definite Matrix and Scalar of Identity

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1 1 $begingroup$ If $A$ is an $ntimes n$ symmetric positive definite matrix with the smallest eigenvalue $lambda$ , then for any $mu>-lambda$ , $A+mu I$ is positive definite. I am trying to show this, but I am stuck on one part. Here is what I have so far: $$ begin{align*} langle x,left(A+mu Iright)xrangle&=langle x,Ax+mu xrangle\ &=langle x,Axrangle+langle x,mu xrangle\ &>0+mulangle x,xrangle\ &>-lambdalangle x,xrangle. end{align*} $$ I'm stuck on showing that $mulangle x,xrangle$ is positive because I only know that $mu>-lambda$ . Any help would be appreciated. linear-algebra matrices eigenvalues-eigenvectors positive-definite share | cite | improve this quest