Casio fx-570CW - Vector Answer Memory (Vctans); Vector Calculation Examples

Copying Vector Variable (or VctAns) Contents
1. Display the Vector Editor or VctAns screen of the vector variable you
want to use as the copy source.
• To display the Vector Editor, perform steps 1, 2, and 3 under "Editing
Vector Variable Data" (page 125).
• To display the VctAns screen, perform the steps below while the
vector calculation screen is displayed.
– [Vector] > [VctAns]
2. Select the vector variable copy destination.
• For example, to copy to VctD, perform the following operation: –
[Store] > [VctD].
• This displays the Vector Editor with the contents of the copy
destination.
3. Press , , or to return to the vector calculation screen.
Vector Answer Memory (VctAns)
Whenever the result of a calculation executed in the Vector app is a
vector, the VctAns screen will appear with the result. The result also will be
stored to a variable named "VctAns".
The VctAns variable can be used in calculations as described below.
• To insert the VctAns variable into a calculation, perform the following
operation:
– [Vector] > [VctAns].
• Pressing any one of the following keys while the VctAns screen is
displayed switches automatically to the vector calculation screen, with
"VctAns" followed by the operator or function of the key you pressed:
, , , , , , , ( ), ( ).
Note
• VctAns contents are retained even if you press or turn off the calculator.
Performing any one of the operations below causes the VctAns contents to be cleared.
- Returning to the HOME screen and launching another calculator app
- Executing – [Reset] > [Settings & Data]
- Executing – [Reset] > [Initialize All]
Vector Calculation Examples
The examples below use VctA = (1, 2) and VctB = (3, 4), and VctC = (2,
-1, 2).
Example 3: VctA • VctB (Vector dot product)
126