excel - Matrix multiply two lists with a formula -

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if have 2 lists in excel:

 x : x1  x2  x3 y : y1  y2  y3

how can make 2-dimensional matrix this?:

 x1*y1  x1*y2  x1*y3 x2*y1  x2*y2  x2*y3 x3*y1  x3*y2  x3*y3

assuming x1-x3 cells a1:a3 , y1-y3 in b1:b3, select 3x3 range , enter formula:

=a1:a3*transpose(b1:b3)

enter array formula, i.e. instead of pressing enter, press ctrl-shift-enter!


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