I don't have the cable to upload a program to mi TI-83 so i decided to hand code this program and when I run it, it gives me undefined and when i go to the part in the code i have no idea what is wrong.

its this part that is giving me the problems:

I couldn't find the overline in the menu, the only thing I could find is the x with the overline over it. Any suggestions?

**Code:**```
```

:ClrHome

:ClrDraw

:FnOff

:AxesOff

:PlotsOff

:

:Input "DEGREE:",X

:X+1→X

:0→dim(L1)

:Disp "COEF. OF :"

:

:For(A,1,X)

:If X-A=1

:Output(2,10,"X ")

:If X-A=0

:Output(2,10,"CONST")

:If X-A>1

:Then

:Output(2,10,"X^ ")

:Output(2,12,X-A)

:End

:Input Y

:Y→L1(A)

:End

:

:Text(1,1,A)

:1→C

:1→R

:

:If L1(1)<0

:Then

:Text(R,C,"‾")

:C+4→C

:‾1*L1→L1

:End

:

:

:

:L1(1)→I

:Lbl XX

:If I≤1

:Goto ZZ

:If sum(abs(fPart(L1/I)))=0

:Then

:L1/I→L1

:Text(R,C,I)

:While I>0

:iPart(I/10)→I

:C+4→C

:End

:Goto ZZ

:End

:I-1→I

:Goto XX

:

:Lbl ZZ

:

:0→Z

:While L1(X)=0

:Z+1→Z

:dim(L1)-1→dim(L1)

:X-1→X

:End

:

:If Z>0

:Then

:Text(R,C,"X")

:C+4→C

:If Z=2

:Then

:Text(R,C,"2")

:C+4→C

:End

:If Z>2

:Then

:Text(R,C,"^")

:Text(R,C+4,Z)

:C+8→C

:End

:End

:

:

:

:Lbl TP

:L1(1)→P

:L1(X)→Q

:abs(P)→P

:abs(Q)→Q

:

:For(I,1,P)

:For(J,1,Q)

:If fPart(Q/J)=0 and fPart(P/I)=0

:Then

:J/I→F

:Lbl MD

:0→dim(L2)

:L1(1)→L2(1)

:For(Z,1,X-1)

:L2(Z)*F+L1(Z+1)→L2(Z+1)

:End

:If L2(X)=0

:Then

:Goto PR

:Lbl FD

:L2→L1

:X-1→X

:

:If X≤1

:Then

:Text(50,1,"FINISHED."

:Text(57,1,"PRESS ENTER TO CONTINUE")

:Pause

:FnOn

:AxesOn

:ClrHome

:Stop

:End

:

:X→dim(L1)

:Goto TP

:End

:If F>0

:Then

:‾F→F

:Goto MD

:End

:End

:End

:End

:End

:

:Text(R,C,"(")

:C+3→C

:

:Lbl PP

:If C>74

:Then

:0→C

:R+7→R

:End

:

:If dim(L1)>0

:Then

:L1(1)→N

:

:If N≠1 or dim(L1)=1

:Then

:Text(R,C,N)

:abs(N)→N

:While N>0

:iPart(N/10)→N

:C+4→C

:End

:End

:End

:

:If dim(L1)≤1

:Then

:Text(R,C,")")

:Text(50,1,"FINISHED."

:Text(57,1,"PRESS ENTER TO CONTINUE")

:Pause

:FnOn

:AxesOn

:ClrHome

:Stop

:End

:

:Text(R,C,"X")

:C+4→C

:

:If dim(L1)=3

:Then

:Text(R,C,"2")

:C+4→C

:End

:

:If dim(L1)>3

:Then

:Text(R,C,"^")

:Text(R,C+4,dim(L1)-1)

:C+8→C

:End

:

:For(A,1,dim(L1)-1)

:L1(A+1)→L1(A)

:End

:dim(L1)-1→dim(L1)

:

:

:While dim(L1)>0 and L1(1)=0

:If dim(L1)>0

:Then

:For(A,1,dim(L1)-1)

:L1(A+1)→L1(A)

:End

:dim(L1)-1→dim(L1)

:End

:End

:

:

:

:Text(R,C,"+")

:If L1(1)<0

:Text(R,C,"-")

:C+4→C

:abs(L1(1))→L1(1)

:Goto PP

:

:Lbl PR

:If C>60

:Then

:0→C

:R+7→R

:End

:Text(R,C,"(")

:C+3→C

:If I≠1

:Then

:Text(R,C,I)

:While I>0

:iPart(I/10)→I

:C+4→C

:End

:End

:Text(R,C,"X+")

:If F>0

:Text(R,C+4,"-")

:C+8→C

:Text(R,C,J)

:While J>0

:iPart(J/10)→J

:C+4→C

:End

:Text(R,C,")")

:C+3→C

:

:Goto FD

:

its this part that is giving me the problems:

**Code:**```
```

:If L1(1)<0

:Then

:Text(R,C,"‾")

:C+4→C

:‾1*L1→L1

:End

I couldn't find the overline in the menu, the only thing I could find is the x with the overline over it. Any suggestions?