@! B>Sell G7 is the top left corner2.Enter the matrix belowD@Press the button Inverse MatrixD@Determinant is enumerated along Determinant ="Inverse MatrixB>Cell G7 is the top left cornerTahomaTahomaHDPress the button "Inverse Matrix"Tahoma pivot  piv  Solvelrow=LastRow(7) Sel(RangeRef(7,7,lrow,lrow)) Copy() for i=7 to lrow for j=lrow+1 to 2*lrow-6 if i=j-lrow+6 Set(CellRef(j,i),1) else Set(CellRef(j,i),0) end end end det=1 a=6 for i=7 to lrow a=a+1 if And(CellRef(i,i)=0,i<lrow) for p=i+1 to lrow for r=2*lrow-6 to 7 step -1 if CellRef(i,p)<>0 tmp=CellRef(r,i) Set(CellRef(r,i),CellRef(r,p)) Set(CellRef(r,p),tmp) end end end end if CellRef(i,i)=0 MsgBox("the matrix is singular") Set(j5,0) Paste() Return() end if CellRef(i,i)<>0 det=det*CellRef(i,i) for j=2*lrow-6 to i step -1 Set(CellRef(j,i),CellRef(j,i)/CellRef(i,i)) end for s=lrow to 7 step -1 for k=2*lrow-6 to i step -1 if s<>a Set(CellRef(k,s),((-1)*(CellRef(i,s)*CellRef(k,i)))+CellRef(k,s)) end end end end end Set(j5,det) Paste()Matrix OTahoma( I iOArial( I iOArial( I iOArial( I iOArial( I iO Tahoma( I iO"Tahoma( I iO"Tahoma( I i  - -$($)$($)%-%M/d/yyd-MMM-yyd-MMMMMM-yyh:mm tt H:mmh:mm:ss ttH:mm:ssM/d/yyH:mm  K - K  K - K d.M.yyd.M.yy H:mm @ @ @ @      @ @@ @ @ @@ @ @@@ @  IA@ @ @  IA@  d&?'?(?)?*,d#  m $ I I    o &  & J       5 *   `  @@"@;;xb'vb'?؉؉? ` @@@؉؉ؿ؉؉?ى؉ؿ ` @?@;;?;;;;ÿ