(matrix,Ring,List)

matrix(R,v) -- create a matrix over R from a doubly-nested list of ring elements or matrices.

This is essentially the same as matrix List together with the specification of the ring.

i1 : R = ZZ/101[a..f]

o1 = R

o1 : PolynomialRing
i2 : matrix(R, {{a,b,0},{d,0,f}})

o2 = {0} | a b 0 |
     {0} | d 0 f |

             2       3
o2 : Matrix R  <--- R

See also map and matrix.

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