entries

entries f -- produces the matrix of the homomorphism f as a doubly nested list of ring elements.

     i1 = R = ZZ/101[x,y,z]
     
     o1 = R
     
     o1 : PolynomialRing

     i2 = p = matrix {{x^2,y^2},{x*y*z, x^3-y^3}}
     
     o2 = | x2  y2    |
          | xyz x3-y3 |
     
                  2       2
     o2 : Matrix R  <--- R

     i3 = entries p
     
             2  2          3    3
     o3 = {{x ,y },{x y z,x  - y }}
     
     o3 : List

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