Iffn(); Imag - Texas Instruments TI-Nspire Reference Manual

If
BooleanExpr1
If Then
Block1
BooleanExpr2
ElseIf Then
Block2
©
BooleanExprN
ElseIf Then
BlockN
EndIf
Allows for branching. If BooleanExpr1 evaluates to true, executes
Block1. If BooleanExpr1 evaluates to false, evaluates
BooleanExpr2, and so on.

ifFn()

BooleanExpr Value_If_true
ifFn( ,
⇒
Value_If_unknown
[, ]])
Evaluates the boolean expression BooleanExpr (or each element
from BooleanExpr ) and produces a result based on the following
rules:
BooleanExpr can test a single value, a list, or a matrix.
•
If an element of BooleanExpr evaluates to true, returns the
•
corresponding element from Value_If_true.
If an element of BooleanExpr evaluates to false, returns the
•
corresponding element from Value_If_false. If you omit
Value_If_false, returns undef.
If an element of BooleanExpr is neither true nor false, returns
•
the corresponding element Value_If_unknown. If you omit
Value_If_unknown, returns undef.
• If the second, third, or fourth argument of the ifFn() function is a
single expression, the Boolean test is applied to every position in
BooleanExpr.
If the simplified BooleanExpr statement involves a list or
Note:
matrix, all other list or matrix arguments must have the same
dimension(s), and the result will have the same dimension(s).

imag()

⇒
Value1 value
imag( )
Returns the imaginary part of the argument.
⇒
List1 list
imag( )
Returns a list of the imaginary parts of the elements.
46 TI-Nspire™ Reference Guide
Value_If_false
[,
expression, list, or matrix
Test value of is less than 2.5, so its corresponding
1
Value_If_True element of
5
Test value of is less than 2.5, so its corresponding
2
Value_If_True element of
6
Test value of is not less than 2.5, so its corresponding
3
Value_If_False element of
10
Value_If_true is a single value and corresponds to any selected
position.
Value_If_false is not specified. Undef is used.
One element selected from Value_If_true. One element
selected from Value_If_unknown.
Catalog >
Catalog >
is copied to the result list.
is copied to the result list.
is copied to the result list.
Catalog >