Texas Instruments TI-86 Manual Book page 316

304
Chapter 20: A to Z Function and Instruction Reference
Horiz
† GRAPH DRAW menu
IAsk
CATALOG
IAuto
CATALOG
ident
MATRX OPS menu
Horiz yValue
Draws a horizontal line on the current graph at yValue.
IAsk
Sets the table so that the user can enter individual
values for the independent variable.
IAuto
Sets the table so that the TIN86 generates the
independent-variable values automatically, based on
values entered for TblStart
ident dimension
Returns the identity matrix of dimension rows ×
dimension columns.
@Tbl
and .
In a graph screen:
ZStd
Horiz 4.5 b
ident 4 b
[[1 0 0 0]
[0 1 0 0]
[0 0 1 0]
[0 0 0 1]]