User Manual

2-49
• You can use the following operation to transfer Matrix Answer Memory contents to another
matrix (or when Matrix Answer Memory contains a determinant to a variable).
MatAns → Mat
α
In the above, α is any variable name A through Z. The above does not affect the contents of
Matrix Answer Memory.
9. Vector Calculations
Important!
• Vector calculations cannot be performed on the fx-7400GII/fx-9750GII.
To perform vector calculations, use the Main Menu to enter the RUN
•
MAT mode, and then
press 1('MAT)6(M⇔V).
A vector is defined as a matrix that is either of the two following forms:
m (rows) × 1 (column)
or 1 (row) × n (columns).
The maximum allowable value that can be specified for both
m and n is 999.
You can use the 26 vector memories (Vct A through Vct Z) plus a Vector Answer Memory
(VctAns) to perform the vector calculations listed below.
• Addition, subtraction, multiplication
• Scalar multiple calculations
• Dot product calculations
• Cross product calculations
• Determination of the vector norm (size)
• Determination of the angle formed by two vectors
• Determination of the unit vector
About Vector Answer Memory (VctAns)
The calculator automatically stores vector calculation results in Vector Answer Memory. Note
the following precautions about Vector Answer Memory.
• Whenever you perform a vector calculation, the current Vector Answer Memory contents are
replaced by the new result. The previous contents are deleted and cannot be recovered.
• Inputting values into a vector does not affect Vector Answer Memory contents.
• Vector calculation results are also stored in Matrix Answer Memory (MatAns).
k Inputting and Editing a Vector
Pressing 1('MAT)6(M⇔V) displays the Vector Editor screen. Use the Vector Editor to
input and edit vectors.
m × n ... m (row) × n (column) vector
None ... no vector preset