How can I get the address of the first matrix element?

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longflying Registered Member Posts 2 Karma 0	How can I get the address of the first matrix element? Thu Jul 02, 2015 9:08 am Hi , I want to use a pointer to access the matrix element in Eigen. How can I get the first address of a Eigen Matrix ? Thanks！ What I want to do is : float *p = &A(0,0) //Eigen does not support this longflying
ggael Moderator Posts 3447 Karma 19 OS	Re: How can I get the address of the first matrix element? Tue Jul 07, 2015 1:21 pm That's as easy as: A.data()

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