Identity() - Texas Instruments TI-NSPIRE Reference Manual

I

identity()

⇒
Integer matrix
identity( )
Returns the identity matrix with a dimension of Integer.
Integer must be a positive integer.
If
BooleanExpr Statement
If
BooleanExpr
If Then
Block
EndIf
If BooleanExpr evaluates to true, executes the single statement
Statement or the block of statements Block before continuing
execution.
If BooleanExpr evaluates to false, continues execution without
executing the statement or block of statements.
Block can be either a single statement or a sequence of statements
separated with the ":" character.
Note for entering the example:
on the handheld, you can enter multi-line definitions by pressing
@ ·
instead of at the end of each line. On the computer
keyboard, hold down and press
Alt
BooleanExpr
If Then
Block1
Else
Block2
EndIf
If BooleanExpr evaluates to true, executes Block1 and then skips
Block2.
If BooleanExpr evaluates to false, skips Block1 but executes
Block2.
Block1 and Block2 can be a single statement.
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