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9. Vector Calculations
To perform vector calculations, use the Main Menu to enter the Run-Matrix mode, and then
press 3('MAT/VCT)6(M⇔V).
A vector is defined as a matrix that is either of the two following forms:
m (rows) Ă— 1 (column)
or 1 (row) Ă—
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
Important!
• You can input either an upper-case X (a+(X)) or lower-case x (v) for vector memory
“Vct X”. Both “Vct X” and “Vct x” refer to the same memory area.
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).
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