Linking Values On Pages; Creating Ti-Nspire™ Variables - Texas Instruments TI-NSPIRE User Manual

Linking values on pages

Variable linking is a powerful tool for building and exploring
mathematical models. Values and functions created or defined in one
application can interact with other applications (within the same
problem) to share data.
There are a few things to keep in mind when using linked items:
• Values can be linked between applications on one page or between
different pages of the same problem.
• Since all applications are linked to the same actual data, if you delete
it from any application, then all references to the data are lost.
• If the linked value is changed in the original application, the change
is reflected in all linked usages.
Each application allows you to define a value or function as a variable.
Defining a variable is the first step in linking values.
Creating TI-Nspire™ variables
Variables can be any portion or attribute of an object or function created
within an application. Examples of attributes that can become variables
are the area of a rectangle, the radius of a circle, the value contained in a
spreadsheet cell or the contents of a row or column, or a function
expression. When you create a variable, it is stored in memory within the
problem .
Types of variables
You can store the following data types as variables:
Data type
Expression
List
Matrix
Character string
Function
Measurement
Working with Documents
Examples
2.54 1.25E6
2
/2
{2, 4, 6, 8}
1 2 3
This can be entered as:
3 6 9
"Hello" "xmin/10"
myfunc( arg )
coordinate, length, perimeter, slope, angle, integral
2p xmin/10
{1, 1, 2}
"The answer is:"
ellipse( x, y, r1, r2 )
2
2+3i (xN2)
[1,2,3;3,6,9]
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