Question: matrices procedure

i have this unfinished procedure to multiply two matrices 

multmatrix:= proc(A:matrix)

local m,n,i,j,r,c,t,a;

m:=linalg[rowdim](A);

n:= linalg[coldim](A);

i:=linalg[rowdim](B);

j:=linalg[coldim](B);

K:=array(1..m,1..n);

H:=array(1..i,1..j);

for r to m d for c to n do

K[r,c]:=A[r,c];

for t to i do for a to j do

H[i,j]:=B[i,j];
 

do you think this is right , i'm not sure what to do next? help please

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