Question: Display Matrix w/ assigned parameters...

Hello,

I'd like to declare a Matrix of variables, then assign each to a value, then just display the resulting Matrix...seems pretty simple. Evalm used show the evaluated version, but I guess that is now depricated. How do I do it in Maple 13....for example

gradV:=Matrix([[a11*x1+a12*x2],[a21*x1+a22*x2]]);
a11:=1;
a12:=0;
a21:=0;
a22:=1;
gradV;
 

thank you.

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